1 . Stage
Preheat the oven to 180 C. Whisk eggs, heavy cream and salt until you get a smooth and even texture. Set aside.
2 . Stage
Melt butter and coat the sides of the baking dish with it. Spread vegetables evenly on the bottom of the pan.
3 . Stage
Pour over the egg mixture. Sprinkle the cheese on top. Using a fork, distribute the cheese around a little to incorporate it into the eggs. Bake for 15 to 17 minutes, or until the edges are set and the top is lightly browned.