Substitute any vegetable you like for any of those listed below.
Put Brussels sprouts, squash, and a couple tablespoons of water in a microwave-safe dish and microwave on HIGH until vegetables are lightly cooked. Drain well.
Add oil and garlic to large nonstick frying pan or skillet and heat over medium heat for 1-2 minutes. Stir in the Brussels sprouts, squash, and tomato. Sauté for a few minutes, or until vegetables reach desired doneness. Sprinkle Parmesan cheese over the top and serve.