Beat eggs with hot sauce, salt, pepper and 1tbsp of water till its well combined.
Combine chopped onions, tomatoes and lemon juice in a small bowl.
Heat 1 tbsp oil in a pan, add the egg mixture and cook for about 2 minutes or till it is golden brown. Flip the omelet to the other side.
Place both the bread slices on the omelet and add the onion-tomato mixture (as shown in the picture)
Cook for about 2-3 minutes. Fold and serve hot with ketchup.