1. Preheat oven to 350F. Heat oil in large skillet. Add tomatoes and sauté over medium heat until browned, about 10 minutes. Add garlic. Cook 1 minute. Remove from heat.
2. Combine ricotta, feta, and milk in large mixing bowl; stir well. Add cooked pasta, tomatoes, zucchini, and basil and stir gently.
3. Transfer mixture to 2-quart casserole dish. Top with cracker crumbs. Sprinkle butter evenly over top. Sprinkle with Parmesan. Cover and bake 30-40 minutes or until hot and bubbly.