Preheat oven to 350 F.

Spray a 9" x 9" pan with non-stick spray.

Mix the eggs, milk, 1/2 teaspoon of salt, onion, pepper and sausage in a bowl and pour into the pan.

Bake 40-45 minutes or until done. Remove and let cool slightly.

For the cheese sauce, melt butter in a small saucepan.

Stir in the cornstarch, 1/4 teaspoon salt and pepper until smooth.

Gradually add milk.

Bring to a boil and cook 2 minutes or until thickened, stirring often.

Reduce heat. Stir in cheese until melted. Remove from heat.

Lightly toast the bread if desired.

Cut omelet into a rectangle and place onto bread half.

Pour cheese sauce over omelet. Add bread top and enjoy!