High-Protein Zucchini Muffins
Moist, fluffy zucchini muffins packed with protein and lightly sweetened — perfect for breakfast, snacks, or meal prep. These stay soft for days and can be made low-sugar or gluten-free.
Servings
12 muffins
Time
- Prep: 15 minutes
- Bake: 20–24 minutes
- Total: ~40 minutes
Ingredients
Dry Ingredients
- 1 cup oat flour
(or whole wheat flour) - ½ cup vanilla or unflavored protein powder
- 1 tsp baking powder
- ½ tsp baking soda
- 1 tsp cinnamon
- ¼ tsp salt
Wet Ingredients
- 2 medium zucchini, grated
- 2 eggs
- ½ cup Greek yogurt
- ¼ cup milk
- ¼ cup honey or maple syrup
- 1 tsp vanilla extract
- 2 tbsp melted coconut oil or butter
Optional Add-Ins
Choose any:
- Dark chocolate chips
- Chopped walnuts
- Pecans
- Raisins
- Chia seeds
- Hemp hearts
Step 1: Prep the Zucchini
Grate zucchini using the large holes of a grater.
Place in a towel or paper towels and squeeze lightly.
Important
Do NOT remove all moisture.
A little moisture keeps muffins soft.
You should end up with:
- about 1½ cups grated zucchini
Step 2: Preheat Oven
Preheat oven to:
- 350°F (175°C)
Line a muffin pan or grease lightly.
Step 3: Mix Dry Ingredients
In a bowl whisk together:
- oat flour
- protein powder
- baking powder
- baking soda
- cinnamon
- salt
Step 4: Mix Wet Ingredients
In another bowl combine:
- eggs
- Greek yogurt
- milk
- honey
- vanilla
- melted oil/butter
Whisk until smooth.
Fold in zucchini.
Step 5: Combine
Add dry ingredients into wet ingredients.
Mix gently until just combined.
Do not overmix or muffins may become dense.
Fold in optional add-ins if using.
Step 6: Fill Muffin Tin
Fill muffin cups about:
- ¾ full
Optional topping:
- oats
- chopped nuts
- cinnamon sprinkle
Step 7: Bake
Bake:
- 20–24 minutes
Muffins are done when:
- tops are lightly golden
- centers spring back
- toothpick comes out mostly clean
Internal temperature should reach approximately:
200∘F to 205∘F200^\circ\mathrm{F}\text{ to }205^\circ\mathrm{F}
for fully baked muffins.
Step 8: Cool
Cool in pan:
- 5 minutes
Then transfer to a wire rack.
Approximate Nutrition (Per Muffin)
Without chocolate chips:
- Calories: ~130
- Protein: ~8–11g
- Carbs: ~12g
- Fat: ~4g
Depends on protein powder and sweetener used.
Best Protein Powders for Muffins
Best Choices
- Whey-casein blend
- Vanilla whey isolate
- Plant protein blend
Avoid
- Pure casein only
- Chalky low-quality powders
Optional Variations
Chocolate Chip Version
Add:
- ⅓ cup dark chocolate chips
Banana Zucchini Muffins
Replace yogurt with:
- mashed banana
Low-Carb Version
Use:
- almond flour
- monk fruit sweetener
Extra Protein
Add:
- 2 tbsp hemp seeds
- extra egg whites
Storage
Counter
- 2 days sealed
Refrigerator
- 5–6 days
Freezer
- up to 2 months
Wrap individually for meal prep.
Pro Tips
Don’t Over-Squeeze Zucchini
Some moisture is essential.
Let Batter Rest 5 Minutes
Oat flour hydrates better and texture improves.
Use Room Temperature Ingredients
Helps muffins rise evenly.
Add Crunch
Sprinkle chopped walnuts on top before baking.
