Hidden Spinach Chocolate Chip Muffins

These muffins are dense, deeply chocolatey, and made with 100% whole grain oat flour. The best part is that they’re packed with vitamins and minerals from hidden spinach — blended right into the batter so you won’t taste it. They work equally well for a nourishing breakfast, a portable snack, or a healthier dessert.

Sneaky Spinach Chocolate Chip Muffins on a plate

Sneaky Spinach Chocolate Chip Muffins

Eat More Vegetables

No matter what your usual diet looks like, adding more vegetables is almost always a good idea. These sneaky spinach chocolate chip muffins are a tasty way to boost your intake—especially if you or your family are reluctant vegetable eaters. The spinach is pureed into the batter along with banana and Greek yogurt, so the muffins stay moist and chocolate-forward while delivering extra nutrients you can feel good about.

How to Make Spinach Muffins

Prepare Ingredients

Before you start, measure everything and prepare the ingredients. Measuring up front prevents mistakes and avoids surprises mid-recipe. Grind oats into flour if you don’t have pre-made oat flour. Separate the eggs if the recipe calls for whites and whole eggs. Having everything ready keeps the process smooth.

Blend It

This recipe is simple because most of the mixing happens in the blender. Begin by blending the banana and Greek yogurt until smooth, then add the fresh spinach and blend again until completely pureed. The spinach should be fully incorporated with no noticeable pieces. By blending the banana, yogurt, and spinach first, you avoid overworking the eggs later—overmixing eggs can make muffins tough.

After the wet mixture is smooth, add the dry ingredients and pulse the blender just until combined. Don’t blend on high or for long; pulse to prevent overmixing.

Fill Muffin Cups

The batter is relatively dense because oat flour is used, so these muffins won’t be ultra-fluffy, but they’ll be moist and flavorful. Use a cookie scoop or spoon to portion batter into lined muffin cups, filling each about three-quarters full. This helps ensure even baking and nice tops.

Bake at 350°F (175°C) for about 20 minutes or until a toothpick inserted in the center comes out clean.

Storage

Let the muffins cool completely before storing. For best results:

  • Refrigerator: Store in an airtight container or reusable bag in the fridge for up to 7 days.
  • Freezer: Once cooled, arrange in a single layer inside an airtight container or freezer bag and freeze for up to 3 months. Thaw at room temperature or warm briefly in a microwave or oven.

Blended Spinach in a blender
Ingredients in a blender

Ingredient Substitutions

Here are simple swaps that work well without changing the recipe’s intent:

  • Banana: Mashed banana can be replaced with applesauce, sweet potato puree, or butternut squash puree. Any smooth, sweet fruit or vegetable puree will work.
  • Egg: Flax eggs are an option for a vegan or egg-free version, though the muffins will be denser.
  • Greek yogurt: Sour cream can substitute for a similar texture and tang.
  • Coconut oil: Substitute another neutral oil if needed, such as vegetable or light olive oil.
  • Ground oat flour: Oat flour is preferred for texture and flavor; if you don’t have it, grind rolled oats in a food processor until fine.
  • Coconut sugar: Brown sugar can be used in place of coconut sugar.
  • Chocolate chips: Omit or swap for dried fruit like cherries or cranberries if you prefer less chocolate. Note that chocolate adds sweetness.
  • Spinach: Kale can be tried as an alternative, though flavor and texture will differ slightly.

Filling muffin cups with batter
Finished chocolate chip muffins

Recipe Details

Prep: 10 mins • Cook: 20 mins • Total: 30 mins • Servings: 12

Ingredients

Wet Ingredients

  • 1 large banana, mashed
  • 1 large egg
  • 2 large egg whites
  • 1/2 cup plain 2% Greek yogurt
  • 1 teaspoon vanilla
  • 2 tablespoons coconut oil, melted (or other neutral oil)

Dry Ingredients

  • 1 cup ground oat flour
  • 1 teaspoon baking powder
  • 1/4 cup coconut sugar (or brown sugar)
  • 1/4 cup cocoa powder (add 1 tablespoon for extra chocolate)
  • 1/3 cup chocolate chips (optional)
  • 2 cups packed spinach

Instructions

  1. Preheat the oven to 350°F (175°C) and line a 12-cup muffin tin with liners.
  2. In a blender, combine mashed banana and Greek yogurt; blend until smooth.
  3. Add the packed spinach and blend until completely pureed with no visible pieces.
  4. Add the egg, egg whites, vanilla, melted coconut oil, oat flour, baking powder, coconut sugar, cocoa powder, and chocolate chips. Pulse the blender until the mixture is just combined — avoid overblending.
  5. Use a cookie scoop or spoon to fill muffin liners about 3/4 full.
  6. Bake for about 20 minutes, or until a toothpick inserted into the center of a muffin comes out clean. Allow muffins to cool completely before storing.

Tips & Notes

  • Pulse the blender rather than running it on high to avoid overmixing and to preserve a tender texture.
  • If you prefer lighter tops, let the batter sit for a few minutes before scooping, or fold the dry ingredients into the blended wet ingredients with a spatula rather than pulsing in the blender.
  • These muffins keep well in the fridge and freeze nicely for meal prep or on-the-go breakfasts.

Nutrition (approximate per muffin)

Calories: 126 kcal • Carbohydrates: 18 g • Protein: 3 g • Fat: 3 g • Fiber: 1 g • Sugar: 7 g

Nutrition information is automatically calculated and should be used as an approximation.

More Healthy Muffin Ideas

If you enjoy these, try other whole-grain and fruit-based muffin recipes that use alternative flours and natural sweeteners for balanced flavor and texture.