Crustless quiche

In our efforts to eat a more traditional diet, I have been searching for low-carbohydrate, nutritionally dense foods for lunch boxes.
This crust-less quiche fits the bill perfectly. Quick and easy to make, it freezes well too, so can be made in bulk as a stand by. 

Crust-less Quiche

small tub cottage cheese, or cream cheese
3 eggs (2 if large)
small onion, finely diced
vegetables, optional (sweetcorn, broccoli and tomatoes work well)
meat, optional

Beat cheese and eggs together until well mixed.
Place vegetables and meat into a greased flan tin or other oven-proof dish, pour over the cheese and egg mixture and bake at 200 deg. C. for 40 minutes until centre is springy to the touch