42 Recipes for Leftover Oatmeal

Yes, you can reheat leftover oatmeal. It’s one of the easiest ways to use up the leftovers and a quick means of making breakfast.

But if reheated, oatmeal doesn’t get your tastebuds all excited, you might want to try some of these amazing recipes to use up those extra already-cooked oats.

oatmeal

Using up leftover cooked oatmeal is a great way to save money and make do with what you have, so get creative and try out some of these great recipes for leftover oatmeal.

Muffin Recipes

Muffins

These light and fluffy, hearty muffins will have you making extra oatmeal just for an excuse to make them. These muffins are heartier than a cupcake, but still come out with a nice fluffy texture.

Cinnamon Coffee Cake Muffins

Check out this recipe for cinnamon coffee cake muffins which will use up about 2 cups worth of leftover oatmeal.

Leftover Cooked Oatmeal Muffins

Crispy on the outside and cake-like on the inside, these muffins work great with your leftover flavored oatmeal, like apple cinnamon. You could easily double the recipe, and freeze the extras for an easy breakfast or snack.

Leftover Oatmeal Muffins with Salted Butter

It’s hard to go wrong with oatmeal muffins, but they are even better when slathered in salted butter. These versatile muffins can be made with any type of oats (steel cut, rolled, or quick) and you can mix in any type of topping, such as cocoa nibs or raisins.

Oatmeal Spice Muffins

This simple recipe can be made by substituting your oatmeal and milk for already cooked oats. This recipe calls for applesauce instead of oil and whole wheat pastry flour.

Banana Oatmeal Muffins

You can make these delicious banana oatmeal muffins by reducing the milk content and using cooked oats instead of uncooked. You can even use up some of those overripe bananas for this amazing recipe.

Leftover Oatmeal Biscuits

Check out this video on how to make biscuits from your leftover oatmeal. They’ll go great with just about any dinner.

Oatmeal Dinner Rolls

This recipe starts with cooking oats. Instead of making fresh oatmeal, just use your leftover, already cooked oats to create these light and fluffy dinner rolls for your next dinner party or family supper.

Cake Recipes

Leftover Oatmeal Cakes

This may be one of the easiest ways to use up leftover oatmeal. Shape your leftover oatmeal into a small loaf, and let it sit in the fridge overnight.

In the morning, simply slice it and fry it up in a little butter for a breakfast that is sure to delight. You can top it with fruit and whip cream for an extra special treat.

Leftover Oatmeal Cake

For a breakfast cake, try this sweet treat that uses two cups of your leftover oatmeal. If you don’t have leftovers, this cake looks tasty enough to make a fresh batch of oatmeal just to bake it.

Chocolate Leftover Oatmeal Cake

If you’re a chocolate lover, try this chocolately twist on leftover oatmeal cake. Use up your thick, chunky leftover oatmeal, and combine it with a few healthy options such as maple syrup, coconut oil, and whole wheat flour to make a healthy, tasty, fudgy cake.

Old Fashioned Oatmeal Cake

You’ll love this old fashioned oatmeal cake recipe. Every bite is tender and moist, and the coconut topping gives it an extra fancy flair. To make the recipe more rich, use half and half instead of milk.

Oatmeal Coffee Cake

Not everyone loves super sweet cake, but if you like coffee cake, then this oatmeal recipe should be just right.

This recipe calls for Truvia and a little brown sugar, which gives it the sweetness with a few less calories. Not only does it use up your leftover oatmeal, it goes great with coffee, too.

Mrs. Bauman’s Lazy Oatmeal Cake

This cake recipe, well, takes the cake. It’s a kid-pleasing, long-lasting, easy-to-make cake that keeps your leftover oats from going to waste.

It was developed by Mrs. Bauman, an Old Order Mennonite. Its an easy and inexpensive recipe to make. What more could you ask for in a cake recipe?

Leftover Porridge Cake

In Britain, leftover oatmeal or other hot cereal is known as porridge. This recipe makes great use of your leftover porridge and is easily customized as well. This cake is extra yummy when topped off with a cream cheese icing or even a caramel glaze and nuts.

Cookie Recipes

Leftover Oatmeal Cookies

Joanie Simon created this recipe for a delicious treat using your oatmeal leftovers. She insists that you don’t skimp on the lemon glaze. This recipe can be made with just about any kind of leftover oatmeal. It uses one cup of leftover or prepared oats.

Porridge Cookies

Try these porridge cookies to use up those leftovers, and create a tasty treat your family will love. These cake-like cookies are best when made with Scottish, pin head oats.

Leftover Steel Cut Oatmeal Cookies

If you love steel cut oats, try this recipe for cookies. The recipe creator did a little experimenting with cream of wheat and spices. You can easily adjust the spices in the recipe to suit your tastebuds.

Trash Cookies

You can use up all kinds of leftovers to make these cookies, including leftover oats, pretzels, candies, or whatever. This recipe is designed to make a balance of sweet and salty cookies using half a cup of each special ingredient.

Leftover Oatmeal Cookies with Dried Fruit

Try your leftover oatmeal in this recipe, using dried fruit and your favorite sweetener.

Another Oatmeal Cookie Recipe

This recipe shows you how to add that leftover oatmeal to standard cookie dough to make a

delicious, traditional oatmeal cookie.

One option is to add some cocoa powder for a chocolatey cookie, and don’t forget to chill them in the fridge for a bit so they hold their shape while baking.

Leftover Oatmeal Cookies

Here’s a video from Good Morning America on how to make cookies from your leftover breakfast oatmeal:

Leftover Oatmeal Cookie Recipes

Blueberry Muffin Leftover Oatmeal Cookies

If your kids love to waste oatmeal, you’ll want to try this oatmeal-saving dessert.

More Leftover Oatmeal Cookies

If you love buttery cookies, try this oatmeal cookie recipe. It calls for half a cup of butter.

Fried Oatmeal Recipes

Pan-Seared Oatmeal with Fresh Fruit and Yogurt

For a different take on using up leftover oats, try this pan-seared oatmeal recipe by RachelCooks. She uses steel cut oats, but you could try this recipe with other types of oats as well. Top it off with fresh fruit, dried fruit, yogurt, or maple syrup for a delightful breakfast.

Southern Fried Oatmeal

This recipe works great with leftover steel cut oats that are made with milk. Top it off with some walnuts for a flavorful crunch.

Fried Oatmeal Patties

Don’t skimp on breakfast with these fried oatmeal patties. Fill up a loaf pan with leftover oats, and let it chill over night. Just slice, fry, and top for a wonderful breakfast.

Oatmeal Fritters

Don’t fritter away that leftover pot of oatmeal – turn it into delicious fritters instead with this recipe from today.com.

You’ll need to roll your oatmeal into small balls, and then flatten them for cooking. If they don’t hold their shape, you can add a little flour to the mixture to make it stiffer.

Fried Oatmeal Breakfast

Both vegan and gluten free, this fried oatmeal dish is sure to please. Freezing the oatmeal in a loaf pan will make it easier to slice, and if you’re really ambitious, you could cut out shapes with cookie cutters before you fry it up.

Super Crispy Oatmeal Pancake

Old-fashioned oats and a little bit of butter transform your leftover breakfast into something new and amazing with this recipe for crispy oatmeal pancakes.

Bread Recipes

Leftover Oatmeal Bread

This hearty recipe makes a pretty and delicious loaf of bread. This bread stays soft and chewy and makes great sandwiches.

Leftover Oatmeal Bread with Honey

This bread recipe calls for just a few ingredients: oatmeal, water, honey, yeast, salt and flour. It doesn’t take much to make this delicious bread.

It will use up about 3 cups worth of leftover oatmeal. You may want to warm the oatmeal in the microwave a little bit just to get out the clumps.

KitchenMage’s Leftover Oatmeal Bread NotQuite Recipe

Kitchen Mage shares her formula and recipe idea for using up leftover oatmeal in bread recipes. You can use it with any cooked cereal and even brown rice, if you choose.

Bars

Leftover Oatmeal Bars

For hearty and filling breakfast bars, try this recipe. See the directions at the bottom to turn the bars into delicious chocolate brownies! Check out the comments section on this recipe to see how readers have adapted this yummy recipe to suit their needs.

Cranberry Sauce Oatmeal Bars

If you’ve got leftover cranberry sauce from Thanksgiving dinner and some leftover oatmeal, this recipe is great to use up both with its layers of chewy crust, tangy cranberry sauce, and a nutty crunchy topping.

Monster Oatmeal Chocolate Chip Cookie Bars

These oatmeal bars will use up your leftovers, and satisfy that sweet tooth, all in one delicious bar. The recipe creator uses M and Ms and Reeses Pieces, but you can use just about any chopped up candy bar instead.

More Ideas

Coconut Oatmeal Bake

Here’s a refreshing taking on baked oatmeal with coconut using custard and coconut vinegar.

Strawberry Oatmeal Smoothies

Smoothies are refreshing and nutritious. Add a little more punch to yours with some cooked oats. You can use the oats to thicken up any smoothie that came out a little too watery.

Flourless Pancakes

You can use up your leftover bananas, oats, and raw eggs with this easy pancake recipe. No flour needed.

Blender Pancakes

Make Ahead Meal Mom makes her leftover oats into delicious blender pancakes. The blender makes the steel cut oats into more of a puree. You’ll need to cook these a little longer than typical pancakes, and they will have a softer, chewy center.

Leftover Porridge Pancakes

If you’ve got leftover porridge, you can make easy pancakes. Bonus, you can use up some of your over-ripe bananas.

Baked Oatmeal

Yes, you can turn that leftover oatmeal into baked oatmeal, just check out this recipe. It will use up 1 ½ cups of your leftover cooked oats. If it isn’t sweet enough, add a little maple syrup after its cooked.

Need some more inspiration? Caroline Lange gives 7 ways to use up those leftover oats.

Check out her article here.

The Best Way to Reheat Oatmeal If you still want to reheat your leftover oats, check out some directions here to make it even tastier.

Did you know leftover oatmeal can be frozen? Just freeze it in portion sized containers and you’ll be ready for a quick breakfast. Simply reheat in the microwave as needed. Julie R. Thompson shares detailed instructions for freezing oatmeal for a quick and easy breakfast here.

Add a few spoonfuls of leftover oatmeal to recipes you already make and love, such as smoothies, meatloaf, or add it to soups like you would add a little rice. If you just have a few spoonfuls left, you can toss it into cookie dough, yogurt, or even ice cream.

Of course, if you simply cannot find a recipe you like to use up your leftover oatmeal, don’t worry! Chickens love oats, so scoop up any leftovers and hand them over to your flock for a treat!

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