Preheat oven to 350F and GENEROUSLY butter 6 Texas size muffin cups.
Melt butter in a skillet over medium heat and saute pepper and onion with 1/2 teaspoon salt and 1/4 teaspoon black pepper, saute for about 8 mins. Turn heat off and add tomatoes.
Whisk the eggs, cream, remaining 1/2 teaspoon salt, pepper and tabasco. Pour mix evenly into muffin cups. Bake for 25 minutes until set. If omelettes look or feel runny in the middle, bake for a further 5 minutes until firm. They will sink slightly when they are removed from oven.
Optional alternativetoeomats or additions are:Cooked, chopped baconChopped hamCooked peas or cornCooked, chopped sausage