Preheat oven to 350F and spray a 12-muffin tin with nonstick cooking spray or place 12 silicone baking cups on a baking sheet.
Add all the protein muffins ingredients to a food processor or blender. (You can also mash the bananas with a fork or masher and mix everything by hand. The food processor is just faster in my opinion.)
Use a large spoon to transfer the muffin batter to the muffin tin or molds. Each one should be nearly full.
Mix the streusel ingredients in a small bowl until uniform. (Image before mixing.)
Spoon the streusel mixture over the top of the protein muffins.
Bake for 25-30 minutes or until a toothpick comes out clean.
Notes
Each muffin has 3 Smart Points.
For whey-only protein powder, use 5 scoops (140g) protein powder and only 2 bananas (200g).The bake time is closer to 30 minutes for this version. Macros per muffin for this version: 145 calories, 11g protein, 17g carbs, and 4g fat
The recipe as-is makes super moist muffins. If you'd like more structure, use two bananas instead of three.
Macros per muffin without streusel: 122 calories, 10.2 grams of protein, 16.1 grams of carbs, and 2.3 grams of fat