Enjoy an easy and healthy overnight breakfast recipe when making Blueberry Crockpot Oatmeal. The whole family will love this slow-cooked oatmeal bursting with blueberries!

This Overnight Crock Pot Breakfast Casserole is also an excellent hands-off breakfast.

Bowl of slow cooked blueberry oatmeal with bananas on top.

Here’s how you make breakfast easy—cook a big batch of overnight Blueberry Oatmeal in your Crockpot! It’s just as good as our Baked Blueberry Oat Bars and tastes like blueberry muffin-baked oatmeal! 

It’s so simple to throw all your ingredients into your slow cooker and wake up to hot, healthy blueberry oatmeal. It’s a great way to feed all the kids or a crowd. And hey, it helps you stay on track with your diet. 

We love cooking with our Crockpot. Here are some genius Crockpot Tips and Tricks you may not know.

Ingredients for Crockpot Blueberry Oatmeal

Making overnight oatmeal requires just a few simple ingredients you likely have in your pantry. 

Milk – or substitute any non-dairy alternative like almond milk or coconut milk
Water
Uncooked steel-cut oats – we also make this with old-fashioned oats with good results.
Blueberries – fresh or frozen blueberries.
Brown sugar – or substitute maple syrup or other desired sweetener
Butter – cut into 5-6 pieces (optional)
Ground Cinnamon – just a hint 
Vanilla Extract – to give it that fresh-baked flavor
Ground flaxseed – optional ingredient for added nutrition 
Salt – just a dash to bring all the flavors together

oatmeal cooking in a crockpot

Oatmeal Topping Ideas

Optional oatmeal garnishes: chopped nuts, shredded coconut, bananas, maple syrup, additional milk, or additional blueberries and butter.

You’ll also need a non-stick spray or a crockpot liner to prevent sticking.

HOW LONG TO COOK OATMEAL IN THE CROCKPOT

This crockpot oatmeal recipe is somewhat forgiving, but it is optimal to cook your oatmeal for 7 hours with steel-cut oats so it doesn’t turn too mushy.

Step-By-Step Instructions

Grab your ingredients, and let’s make this recipe. It takes under 5 minutes to put it all in your slow cooker.

Step 1 – PREP CROCK POT

Coat the inside of your slow cooker with cooking spray or line it with a crockpot liner.

Step 2 – ADD INGREDIENTS

Add all ingredients except your additional toppings to the slow cooker. Stir well and cover.

oats in a crockpot

Step 3 – Cook

Cook on low for approximately 7 hours. Adjust the time to your slow cooker if it cooks cooler or hotter. 

Tip: If your slow cooker tends to run hot, you can also use the warm setting for cooking.

Erin’s Expert Tips

  • To make this recipe plain oatmeal, omit the blueberries.
  • You can use fresh or frozen blueberries. Dried blueberries also work, but decrease the amount to 1 cup. 
  • If you decrease the cooking time, you can use old-fashioned oats in this recipe.
  • We use a 6-quart slow cooker for the recipe.
  • All slow cookers cook differently, so the suggested cooking time is a basic guideline and should always be tested first in your slow cooker, and adjust the time as needed.
  • Equipment: We recommend a 6-quart programmable crock pot and slow cooker liners if you’re afraid the recipe will stick.

How to store

  • Store any leftover blueberry oatmeal in an airtight container in the refrigerator for 1-2 days.
  • To reheat single servings, Put 1 cup cooked oatmeal in a microwave-proof bowl. Add ⅓ cups fat-free milk or milk alternative. Microwave on high for 1 minute; stir. Continue cooking for another minute or until hot.
oatmeal with bananas on top

Other Healthy Breakfast Ideas

Healthy Breakfast Sundaes – a fun, kid-friendly way to eat a healthy breakfast.
Easy Oatmeal Bars – our most popular recipe because it’s easy and nutritious.
Crockpot Apple Cinnamon Oatmeal – up your breakfast game with the sweet combination of apples and cinnamon.
Baked Blueberry Oatmeal Cups—This is an easy recipe that works well for meal prep because these cups reheat well.

Two Oatmeal Bars stacked on each other with a glass of milk in the background.

More Slow-Cooker Breakfast Recipes

If you love the convenience of overnight oatmeal, you want to try:

How To Make Crockpot Oatmeal Gluten-Free

To make this recipe gluten-free, make sure to use certified gluten-free oats. 

Dairy-Free Option

To make your oatmeal recipe dairy-free, you can use all water or a dairy-free alternative like almond milk or coconut milk. 

Can I freeze cooked oatmeal?

Yes, you can freeze Slow Cooker Oatmeal and reheat it later, so this is definitely a helpful meal-prep recipe. 

Place your cooked oatmeal in airtight freezer storage containers, label, and date. To thaw, put the containers in the refrigerator overnight, then reheat in the microwave in 1-minute increments in a microwave-safe dish.

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A bowl of crock pot oatmeal with blueberries.
5 from 7 reviews

Blueberry Crock Pot Oatmeal Recipe

Enjoy an easy and healthy overnight breakfast recipe when you make Blueberry Crockpot Oatmeal. The whole family will love this slow-cooked oatmeal bursting with blueberries!

Ingredients
 

  • 2 cups blueberries, fresh or frozen
  • 1 cup uncooked steel-cut oats
  • 1 ½ cups fat-free or low fat milk, or substitute non-diary alternative like almond milk
  • 1 ½ cups water
  • 1 teaspoon cinnamon
  • 2 tablespoons brown sugar, or substitute maple syrup or other desired sweetener
  • 1 ½ tablespoons butter, cut into 5-6 pieces (optional)
  • 1 teaspoon vanilla
  • ¼ teaspoon salt
  • 1 tablespoon ground flax seed, optional
  • Optional garnishes: chopped nuts, shredded coconut, maple syrup, additional milk or butter

Equipment

  • 5-6-quart Crockpot
  • Mixing spoon

Instructions
 

  • Coat inside of slow cooker with cooking spray. Add all ingredients (except optional toppings) to a slow cooker. Stir and cover.
  • Cook on low for approx—7 hours (slow cooker times can vary).
  • Spoon oatmeal into bowls; add optional toppings, if desired. Store leftovers in the refrigerator. Freezes well.
  • To reheat single servings: Put 1-cup cooked oatmeal in a microwave-proof bowl. Add ⅓ cup fat-free milk. Microwave on high for 1 minute; stir. Continue cooking for another minute or until hot.

Notes

  • To make this recipe plain oatmeal, omit the blueberries.
  • You can use all water or some almond or coconut milk want to make this recipe dairy-free.
  • To reheat single servings, put 1-cup cooked oatmeal in a microwave-safe bowl. Add cup milk. Then, microwave on high for 1-minute; stir. Continue heating for another minute or until the desired temperature.
Nutritional information is approximate and was calculated using a recipe nutrition label generator and will vary based on cooking methods and brands of ingredients used.
Calories: 129kcal, Carbohydrates: 23g, Protein: 4g, Fat: 3g, Saturated Fat: 1g, Cholesterol: 3mg, Sodium: 88mg, Potassium: 58mg, Fiber: 3g, Sugar: 7g, Vitamin A: 71IU, Vitamin C: 4mg, Calcium: 38mg, Iron: 1mg
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