What's for Dinner?: Apple Cinnamon Sweet Potato Muffins

Ingredients

• 3/4 cup oat bran
• 3/4 cup whole wheat flour
• Sugar substitute to equal 2/3 cup sugar
• 1 1/2 tsp. cinnamon
• 1 tsp. baking powder
• 1 tsp. baking soda
• 1/8 tsp. salt
• 1/2 cup apples, skinless, finely chopped (about 1 apple)
• 1 cup fresh sweet potatoes (yams), cooked and mashed or 1(15 oz.) can sweet potatoes, drained and mashed
• 1/2 cup egg substitute
• 2 tbsp. vegetable oil
• 2/3 cup plain fat free, sugar-free yogurt