1. Preheat oven to 425°F.
2. In a microwave-safe dish, add onion & pepper mix, spinach & broccoli. Microwave to defrost at 50% power 3 minutes. Drain water from vegetables. Add ham & tomato. Mix well.
3. In a small bowl, mix eggs, 1 cup cheese & garlic powder.
4. Spray square glass baking dish with cooking spray. Spread vegetable & ham mixture evenly in dish. Pour egg mixture over vegetables. Top with remaining cheese.
5. Bake 20-25 minutes, or until frittata is set. To check, insert a knife in the middle. If ready, it will come out clean.