Step 1

Preheat oven to 375 degrees. Spray an 11” x 17” baking sheet with nonstick spray.

Step 2

Bring a large skillet sprayed with nonstick spray to medium-high heat. Add bell pepper and onion. Cook and stir until softened and lightly browned, about 5 minutes. Add spinach, and cook and stir until just wilted, about 1 minute.

Step 3

Transfer to a large bowl. Add cream cheese, and stir to coat. Add egg whites/substitute and seasonings, and mix well.

Step 4

Transfer mixture to the baking sheet. Bake until firm and cooked through, about 18 minutes.

Step 5

Top with mozzarella. Bake until melted, about 3 minutes.