Ingredients:
5 tablespoons butter, softened and divided
1 (8 ounce) packages sliced fresh mushrooms
1/2 purple onions, thinly sliced
2 tablespoons mayonnaise
8 slices sandwich bread
4 slices monterey jack cheese
2 tomatoes, sliced
4 slices American cheese
Directions:
Melt 1 T. butter in a large nonstick skillet over medium-high heat. Add sliced mushrooms and onion, and saute 5 minutes or until tender. Drain.
Spread mayo on 1 side of half of the bread slices; top with Montery Jack cheese and tomato. Spoon mushroom mixture evenly over tomato; top with American cheese. Cover with remaining bread slices.
Spread about 1/2 T. of softened butter on 1 side of each sandwich. Cook sandwiches, buttered side down, in a hot nonstick skillet or griddle over medium heat until browned.
Spread remaining softened butter evenly on ungrilled side; turn and cook until lightly browned.
Servings: 4
Time preparation: 15 min.
Time total: 31 min.