Zucchini Provencale

Name: Zucchini Provencale
Ingredients: 2 tablespoons chopped onion; 1 tablespoon canola oil; 1 small zucchini, cubed; 1 small yellow summer squash, cubed; 1/4 cup chopped green pepper; 1 garlic clove, minced; 1/8 teaspoon salt; Dash pepper; 1 medium tomato, cut into wedges; 1 tablespoon grated Parmesan cheese