Upside-Down Pizza

Upside-Down Pizza
Serves 6
INGREDIENTS:
I pound 99% fat free ground chicken or turkey
1 cup soy crumbles (grillers or sausage-style)
1 onion, quartered and thinly sliced
1, 8 oz. package sliced mushrooms
1 can “no salt added” spinach, squeezed dry
1 teaspoon black pepper
1 (14-15 oz.) can “no salt added” diced tomatoes
1 (14-15 oz.) jar or can of pizza sauce
2 tablespoons tomato [...]