Roasted heirloom tomato and spinach frittata with Parmesan

Two frittatas in a row. I haven't been to the grocery store since I vowed to do more great breakfast, so this is what I can do that is healthy with what I have.

Ingredients
eggs (I used 5 but you can use more)
red, sturdy heirloom tomato, sliced
spinach
onion, chopped
garlic, chopped
cheddar, grated (optional)
Parmesan, grated
salt
pepper
fat: oil/butter/lard

Tools
cast iron pan
whisk
mixing bowl
stove top
broiler

1. saute chopped onions and garlic in pan
2. once the roots are coming along, gently add in heirloom tomato and allow to brown
3. toss in spinach
4. whisk eggs and cheddar together til well beaten
5. pour egg mix over veggies, stir in to mix everything
6. wait for bottom to cook
7. once bottom has cooked, put frittata under broiler
8. Wait for top to be brown, remove from broiler
9. salt, pepper, and Parmesan on top
10. eat. :P