1 8" unbaked frozen pie shell
4 cups Vidalia onions thinly sliced
2 ounces extra virgin olive oil
2 cups Gruyere cheese grated
2 1/2 cups tomatoes diced & drained
10 leaves Basil cut in thin strips
salt & ground black pepper to taste
Preheat oven to 350 degrees.
Saute onion in 1 oz. olive oil over medium heat for 15-20 minutes or till golden brown. Season with salt & pepper & let cool.
Season tomatoes with salt, pepper & 1 oz. olive oil.
Spread onions over the pie shell. Cover with the cheese. Spread tomatoes over cheese, covering cheese completely.
Bake at 350 for 35-45 minutes, until crust is golden brown.
Sprinkle basil over tarte. Serve warm.
Serving Ideas: Good with fresh asparagus.