Heat oven to 400 degrees F. Cover baking sheet with nonstick cooking spray. Put tomatoes, bell pepper, zucchini, onion, garlic, and basil in pan and coat with cooking spray. Season with salt and pepper and roast for 20-30 minutes until veggies are brown and tender.
Spray four 8-10 oz ramekin cups with nonstick spray. Divide roasted veggies evenly. Make a well in the center of the vegetables. Pour a 1/4 cup of egg whites into each ramekin. Sprinkle with Parmesan cheese and bake until eggs are set, 20-25 minutes Feel free to substitute with your favorite vegetables.