Impossibly Easy Tuna, Tomato and Cheddar Pie

1 Tbsp butter

1 large chopped onion (1 cup)

1 6oz can drained tuna

1 cup shredded cheddar cheese

1/2 cup Bisquick mix*

1 cup milk

1/8 tsp pepper

2 eggs

1 medium tomato, thinly sliced

Cook onion in butter until tender. Sprinkle tuna, 1/2 cup cheese and onion in bottom of 9 in greased pie plate. Stir remaining ingredients except tomato in bowl with whisk until blended. Pour into pie plate. Bake at 400 for 25-30 minutes. Top with tomato slices and remaining cheese and bake for 3-5 minutes until cheese is melted.

Recipe taken from Bisquick recipe cards Feb/March 2010.

*I use my own homemade Bisquick mix.