Savory Tomato Pie – Duke's Mayo

Ingredients

• 1 pie shell
• 1 medium sweet onion, sliced into rings
• 1 Tbsp. vegetable oil
• 11/2 lbs. tomatoes, cut into 1/4 inch slices
• 1 tsp. basil leaves
• 1/4 tsp. ground black pepper
• 1/3 cup mozzarella cheese, shredded
• 1/3 cup Parmesan cheese, grated
• 3/4 cup Duke's Light Mayonnaise