Zesty Vegan Lemon Blueberry Baked Oatmeal Recipe

This lemon blueberry baked oatmeal is a bright, spring-ready breakfast that combines fresh blueberries and lemon zest for a fresh, tangy flavor. The recipe is fully plant-based when made with flax “eggs” and almond milk, takes under an hour to prepare and bake, and uses 100% whole grains with no refined sugar. It makes a nourishing, portable breakfast or brunch dish that reheats well and keeps in the fridge for several days.

Lemon Blueberry Vegan Baked Oatmeal

We partnered with Silk to feature plant-based ingredients this season, and Silk Unsweetened Almondmilk works wonderfully in this bake. Its mild flavor enhances the oats without adding extra sweetness, and it helps create a creamy texture while keeping the recipe dairy-free.

Bowl of Oatmeal

This oatmeal bake highlights bright lemon zest and juicy blueberries. If you enjoy baked oatmeal, you’ll find this version especially refreshing—it’s one of many variations that make baked oats a versatile, healthy staple. You can keep it vegan by using flax eggs, or substitute two large eggs if you prefer a conventional version. Both options were tested and work well.

How to Make a Vegan Oatmeal Bake

  • 1 ripe medium banana, pureed
  • 1 cup blueberries, pureed
  • 2 flax eggs (see Tips & Notes) — or substitute 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/4 cup maple syrup (or honey if not vegan)
  • 1/2 cup Silk Unsweetened Almondmilk
  • 2 cups rolled oats (100% whole grain)
  • 1/2 cup white whole wheat flour (any flour works)
  • 1 teaspoon baking powder
  • 1 cup fresh blueberries (folded into batter)
  • Zest of 1 lemon
  • Pinch of salt

I can’t wait for you to try this recipe. If you make it, tag your photos on social media with #fitfoodiefinds for a chance to be featured.

Lemon Blueberry Oatmeal Bake
Oatmeal on plate

More Baked Oatmeal Recipes

  • Strawberry Rhubarb Baked Oatmeal
  • Peanut Butter Banana Baked Oatmeal
  • Apple Cinnamon Baked Oatmeal
  • Banana Berry Baked Oatmeal
  • Berry Dark Chocolate Oatmeal Bake

Recipe: Lemon Blueberry Baked Oatmeal

Prep: 10 mins • Cook: 30 mins • Total: 40 mins • Servings: 6

Ingredients

  • 1 ripe medium banana, pureed
  • 1 cup blueberries, pureed (for the wet mix)
  • 2 flax eggs* (or 2 large eggs)
  • 1 teaspoon vanilla extract
  • 1/4 cup maple syrup (or honey)
  • 1/2 cup unsweetened almond milk
  • 2 cups rolled oats
  • 1/2 cup white whole wheat flour (or any flour)
  • 1 teaspoon baking powder
  • 1 cup fresh blueberries (fold into batter)
  • Zest of 1 lemon
  • Pinch of salt

Instructions

  1. Preheat the oven to 350ºF (175ºC). Lightly grease a 10″ x 7″ casserole dish or baking pan with nonstick spray or a little oil.
  2. Prepare the flax eggs: combine 2 tablespoons ground flaxseed with 6 tablespoons warm water, stir and let sit for 15 minutes until gelled. (See Tips & Notes below for one-flax-egg proportions.)
  3. In a blender or food processor, combine the ripe banana, 1 cup blueberries, maple syrup, vanilla extract, and almond milk. Blend until smooth.
  4. Transfer the blended wet mixture to a large mixing bowl. Add the rolled oats, flour, baking powder, and a pinch of salt. Stir to combine.
  5. Fold the prepared flax eggs into the oat mixture, then add the 1 cup fresh blueberries and lemon zest. Mix gently so the berries stay mostly intact.
  6. Spread the batter evenly into the prepared casserole dish using a spatula. Scatter a few extra blueberries on top if desired.
  7. Bake at 350ºF for about 30 minutes, or until the center is set and the top is lightly golden. A toothpick inserted into the center should come out mostly clean.
  8. Allow the baked oatmeal to cool slightly before slicing. Serve warm with an extra sprinkle of lemon zest and a dollop of yogurt or your favorite topping.

Tips & Notes

  • To make one flax egg: mix 1 tablespoon ground flaxseed with 3 tablespoons warm water. Stir and let sit for 15 minutes until it thickens. For this recipe, two flax eggs are used.
  • If you prefer a firmer texture, reduce the almond milk slightly. For a softer, more custardy bake, add an extra 1–2 tablespoons of almond milk.
  • Any berry or frozen blueberries can be used; if using frozen, do not thaw before folding them into the batter to prevent discoloring.
  • Substitute regular eggs for flax eggs if not keeping the recipe vegan—two large eggs work as a one-to-one swap.
  • This bake stores in the refrigerator for up to 4 days and reheats well in the microwave or oven. You can also freeze individual portions for quick breakfasts.

Nutrition (per serving, approximate)

Calories: 270 kcal • Carbohydrates: 48 g • Protein: 8 g • Fat: 5 g • Fiber: 7 g • Sugar: 15 g

Nutrition values are estimates and should be used as a guideline only.

Author: Lee Funke

Disclosure: This post is sponsored by Silk. The recipe was developed and tested as shown, and opinions are the author’s own. Thank you for supporting the recipes and content shared here.