Whisk the eggs with ¼ cup of skimmed milk and season with salt and pepper to taste.
Heat a 6" cast iron pan. Add Olive oil and heat it up.
Now add chopped veggies to the pan, saute them for 3-4 minutes and lower the heat.
Add whisked eggs to the pan and let it cook for 2-3 minutes on low heat so it is just about set.
Now place this frittata in a preheated oven at 170C for 15 minutes and take it out sprinkle the cheese and return it the oven for 2-3 minutes and increase the temperature so it gets browned from the top. Slice it in the wedges and serve it hot.
Per Recipe: 3 (2 Wedges each)