Mix all the ingredients in a bowl and whisk until the batter is smooth.

Spray the muffin pan with oil. Evenly divide the batter into 12 muffin cups.

Bake in the oven at 350°F for 17-22 minutes. Baking time may vary depending on your oven. To check if the muffins are done, insert a toothpick into the center—if it comes out clean, the high protein strawberry blueberry muffins are ready.