These are not what you are looking for but I couldn't find the other recipe. Perhaps you could tweak this recipe adding bananas and soy milk instead of skim milk?

Starbuck's Low Fat Blueberry Muffins

3 cups unbleached flour
1 cup sugar
1 tablespoon baking powder
1/2 teaspoon salt
1 cup skim milk
2/3 cup applesauce or pureed pear (or 1/3 cup melted margarine)
2 egg whites
1 1/2 cup blueberries
Vegetable oil spray

Preheat oven to 375 degrees. Blend dry ingredients and set aside.

Combine milk, apple or pear, egg whites; blend well. Add to the dry ingredients and mix with a fork until just blended. Gently fold in blueberries. Spoon batter into muffin tins lightly sprayed with vegetable oil.

Bake until golden brown.

This recipe yields 12 muffins.