Preheat oven to 375 degrees.

Bring a large skillet sprayed with nonstick spray to medium-high heat on the stove. Add turkey and season with 1/8 tsp. salt and pepper. Cook and crumble until no longer pink, about 5 minutes. Add onion and mushrooms and, stirring often, cook until veggies are soft and turkey is fully cooked, about 6 minutes.

Reduce heat to low. Add crushed tomatoes, 1 tsp. garlic, and Italian seasoning to the skillet. Stirring occasionally, simmer for 10 minutes. Set aside.

Meanwhile, in a bowl, combine spinach, ricotta cheese, egg substitute, nutmeg, remaining 1/8 tsp. salt, and remaining 1/2 tsp. garlic. Mix well and set aside. Spray a 12-cup muffin pan with nonstick spray. Press a wonton wrapper into the bottom and up along the sides of each cup of the pan. Evenly distribute about half of the spinach-ricotta mixture among the cups, smoothing the surfaces with the back of a spoon.

Evenly distribute about half of the turkey mixture among the cups, smoothing the surfaces with the back of a spoon. Top each turkey layer with 1 tbsp. mozzarella cheese. Place another wonton wrapper into each cup, lightly pressing it down on the cheese layer and along the sides of the cup, letting the edges fall over the pan. Repeat layering by evenly distributing remaining spinach-ricotta mixture and turkey mixture among the cups. Top each cup with 1 tbsp. mozzarella cheese.

Bake in the oven until cheese has melted and wrapper edges are browned, about 10 minutes.

Allow to cool, carefully transfer to a plate, and serve 'em up!