I have always made this, I got the recipe from the back of the Bisquick Box.
Make and share this Bisquick Impossible Tuna Melt Pie recipe from Food.com.
- Preheat oven to 400 degrees.
- Grease baking dish.
- Cook and stir onions and butter in skillet over low heat until onions are light brown. Sprinkle tuna, 1 cup of the cheese and the onions in baking dish.
- Beat eggs, milk, baking mix, salt and pepper until well blended.
- Pour into baking dish.
- Bake 25 minutes. Top with remaining cheese to within 1 inch from edge. Bake 5 to 8 minutes longer or until knife inserted in center comes out clean. The pie can be done even though some melted cheese adheres to knife.