1Heat oven to 375°.
2Melt margarine in 10-inch ovenproof skillet over medium-high heat. Cook onion and garlic in margarine 3 minutes, stirring frequently. Stir in bell pepper; reduce heat to medium. Cook about 2 minutes, stirring occasionally, until crisp-tender. Stir in zucchini, tomato, salt and pepper. Cook 4 minutes, stirring occasionally. Stir in egg product.
3Bake 10 to 12 minutes or until set in center. Sprinkle with cheese. Cut into wedges.