Frozen Yogurt Peanut Butter Banana Cream Pie

Ingredients

• 2 cups low fat vanilla wafers
• 2 tbs butter melted
• 1/4 cup baking stevia or 1/2 cup sweetener of choice that measures like sugar
• 2 ripe medium bananas
• 1/2 cup peanut flour (or 1/4 cup peanut butter, melted)
• 1/2 tsp salt
• 1/2 cup skim milk (or milk of choice)
• 1 (12 oz) container fat free cool whip or tru whip (for a natural version)
• 1/2 cup baking stevia or 1 cup sweetener of choice that measures like sugar
• 1 cup low fat plain greek yogurt