These lemon blueberry baked oatmeal cups are a delightful healthy breakfast option. Ready in under an hour, meal prep a batch for a week of nutritious meals or snacks. These baked oatmeal cups are vegan and gluten free, too!

Close up of lemon blueberry baked oatmeal cups

Raise your hand if you love the lemon blueberry flavor combination! It’s one of my all time favorites, especially for spring and summer. Some of my go-to’s are lemon blueberry loaf, lemon blueberry pancakes, and now these lemon blueberry baked oatmeal cups!

As a Registered Dietitian, I love to create nutritious breakfast recipes that are meal prep friendly. Healthy baked oatmeal and baked oatmeal cups top my list for this! They take less than an hour to prepare, and you’ve got breakfast set for the week. These baked oatmeal cups are vegan, gluten free (if you use certified gluten free oats), nut free, and dairy free.

Ingredients in lemon blueberry baked oatmeal cups

Here is everything you will need to make these baked oatmeal cups:

  • Old fashioned rolled oats: I do not recommend using quick oats or steel cut oats for this recipe, as the texture will change significantly.
  • Ground flax: This acts as a vegan egg replacement when combined with the wet ingredients.
  • Blueberries: I used fresh blueberries, but you can use frozen ones too!
  • Lemon juice and lemon zest for bright, lemon flavor.
  • Maple syrup lightly sweetens these baked oatmeal cups.
  • Unsweetened almond milk or your plant milk of choice.
  • Vanilla extract enhances all the sweet flavors in this recipe.
  • Baking powder
  • Salt

Substitution suggestions and ideas

  • Switch up the berry you use. Make these lemon raspberry or lemon mixed berry baked oatmeal cups.
  • Make lemon blueberry baked oatmeal instead of baked oatmeal cups. To turn this into a baked oatmeal recipe, just put the batter in a ceramic baking dish instead of a muffin pan. Bake it up for about 30 minutes!
  • Make it higher protein. Use two eggs instead of flax meal (if not vegan), or add a scoop of your favorite unsweetened or vanilla protein powder to the batter.
  • Try fresh orange juice and orange zest for a different citrus flavor profile instead of lemon.
Lemon blueberry baked oatmeal cups ingredients in bowls

How to make baked oatmeal cups

Making baked oatmeal cups is basically the same as making baked oatmeal. The only difference is you bake them in a muffin pan rather than in one big baking dish! Start by spraying the muffin pan with spray oil or lining with cupcake liners.

Combine the flax meal with the wet ingredients: almond milk, maple syrup, lemon juice, and vanilla extract. Let it sit for a few minutes while you mix the dry ingredients.

Mix together the dry ingredients in another bowl: oats, baking powder and salt. Add the dry mixture to the wet mixture and stir to combine everything. Then, add the lemon zest and fold in the blueberries.

Portion the batter evenly into 12 muffin tins. Bake in the oven for about 30 minutes, until a toothpick comes out clean from the center of the oatmeal cups.

Let the baked oatmeal cups cool for about 10 minutes, then use a butter knife to gently loosen the edges from the muffin tin. Enjoy 2 or 3 as a healthy breakfast or snack! I love to eat them plain, but they are also wonderful paired with Greek yogurt or a drizzle of nut butter.

Storing baked oatmeal cups

This recipe, and baked oatmeal recipes in general, work wonderfully for meal prepping. They taste good warm or right from the fridge, and they’ll stay fresh for up to 5 days in the fridge. I put them in an airtight container once they’ve cooled completely.

You can also freeze baked oatmeal cups for later consumption. Place them in an airtight container or silicone baggie, or tightly wrap them individually in plastic wrap, then tin foil. They will stay fresh in the freezer for 2-3 months. Thaw them in the microwave or toaster oven before enjoying from frozen.

Hand removing a baked oatmeal cup from a tray of lemon blueberry baked oatmeal cups

Blueberries nutrition benefits

Blueberries are an incredibly nutrient dense food to include in your diet. One cup of fresh blueberries provides:

  • 4 grams of dietary fiber
  • 25 percent of your daily manganese needs
  • 24 percent of your daily Vitamin C needs
  • 36 percent of your daily Vitamin K needs

Blueberries, and berries in general, have more fiber than other types of fruit, making them a lower sugar fruit choice. In addition to vitamins and minerals, blueberries are incredibly rich in antioxidants. The antioxidants in blueberries may help prevent certain chronic diseases and keep our cells healthy.

Nutrition tip: frozen blueberries are equally as nutritious as fresh ones! They’re a budget friendly, longer lasting alternative you can use in this baked oatmeal recipe, other baked goods, or smoothies.

Oats nutrition benefits

Whole grain oats are a healthy food to enjoy in your diet! One half cup of uncooked rolled oats provides:

  • 4 grams of dietary fiber, including heart healthy soluble fiber
  • 6 grams of plant-based protein
  • An excellent source of several micronutrients:
    • Nearly 200 percent of your daily manganese needs
    • 41 percent of your daily phosphorus needs
    • 34 percent of your daily magnesium needs
    • 24 percent of your daily copper needs
    • 20 percent of your daily iron and zinc needs

Most of the soluble fiber in oats is in the form of beta-glucan. This type of fiber is linked to improved heart health, because it can lower “bad” LDL cholesterol levels. It also promotes gut health, as beta-glucan feeds the good bacteria that live in our guts.

Lemons nutrition benefits

Lemons are an excellent source of Vitamin C. One lemon (without the rind) provides more than half of your daily Vitamin C. A high dietary intake of this vitamin is linked to reduced cardiovascular disease risk, better immune function, and improved eye health.

Stack of three lemon blueberry baked oatmeal cups on a cooling rack with parchment paper

More healthy baked oatmeal recipes to try

Let me know if you love this recipe by leaving a comment or star rating below, and check out Instagram and Pinterest for more healthy lifestyle inspiration. Thanks for stopping by!

Print

Lemon Blueberry Baked Oatmeal Cups

These lemon blueberry baked oatmeal cups are a delightful healthy breakfast option. Ready in under an hour, meal prep a batch for a week of nutritious meals or snacks. These baked oatmeal cups are vegan and gluten free, too!

  • Author: Alex Aldeborgh
  • Prep Time: 10 minutes
  • Cook Time: 35 minutes
  • Total Time: 45 minutes
  • Yield: 12 baked oatmeal cups 1x
  • Category: breakfast
  • Method: oven
  • Cuisine: American
  • Diet: Vegan

Ingredients

Scale
  • 2 tbsp ground flax seed
  • 1 1/2 cups unsweetened almond milk
  • 1/3 cup maple syrup
  • 4 tbsp lemon juice (juice of 2 lemons)
  • 1 tsp vanilla extract
  • 3 cups old fashioned rolled oats
  • 2 tsp baking powder
  • 1/4 tsp salt
  • 1 tbsp lemon zest
  • 3/4 cup blueberries 

Instructions

  1. Preheat oven to 350 degrees F. Prepare a muffin pan by spraying with oil or lining with cupcake liners.
  2. Combine the ground flax with almond milk, maple syrup, lemon juice, and vanilla extract in a large mixing bowl. Let sit for a few minutes while you prep the dry ingredients.
  3. Mix together the oats, baking powder, and salt in another mixing bowl.
  4. Pour the dry mixture over the wet mixture and stir it all up. 
  5. Add the lemon zest and fold in the blueberries.
  6. Equally portion out the oat batter into the 12 muffin cups, filling about 2/3 full.
  7. Bake for 30-35 minutes, until edges begin to turn golden brown and a toothpick comes out clean when inserted into the center of an oatmeal cup.
  8. Let cool for at least 10 minutes, then run a butterknife around the circumference of each muffin to loosen it from the tin (if not using cupcake liners). 
  9. Pop the oatmeal cups out from the muffin pan and enjoy!

Notes

Storing baked oatmeal cups

  • This recipe works wonderfully for meal prepping. They taste good warm or right from the fridge, and they’ll stay fresh for up to 5 days in the fridge. I put them in an airtight container once they’ve cooled completely.
  • You can also freeze baked oatmeal cups. Place them in an airtight container or silicone baggie, or tightly wrap them individually in plastic wrap, then tin foil. They will stay fresh in the freezer for 2-3 months. Thaw them in the microwave or toaster oven before enjoying from frozen.

Substitution suggestions and ideas

  • Switch up the berry you use. Make these lemon raspberry or lemon mixed berry baked oatmeal cups.
  • Make lemon blueberry baked oatmeal instead of baked oatmeal cups. To turn this into a baked oatmeal recipe, just put the batter in a ceramic baking dish instead of a muffin pan. Bake it up for about 30 minutes!
  • Make it higher protein. Use two eggs instead of flax meal (if not vegan), or add a scoop of your favorite unsweetened or vanilla protein powder to the batter.
  • Try fresh orange juice and orange zest for a different citrus flavor profile instead of lemon.

Keywords: baked oatmeal cups, lemon blueberry, flaxmeal

Save this recipe for later to Pinterest

Close up of lemon blueberry baked oatmeal cups