Grilled Roast Beef Sandwiches

Serves 4

1 medium onion, sliced
1 green bell pepper, sliced
1/2 pound fresh mushrooms, sliced
2-3 cloves garlic, minced
2 Tbsp olive oil
1/4 tsp salt
1/8 tsp pepper
8 slices sourdough bread
8 slices deli roast beef
16 slices swiss cheese
1/2 cup butter, softened

In large skillet, saute onion, bell pepper, mushrooms and garlic in oil until tender; sprinkle with salt and pepper. On four slices of bread, layer two slices of cheese, two slices of beef, and a fourth of the vegetable mixture. Top with the remaining cheese and bread. Butter outsides of bread. On a hot griddle, toast sandwiches for 3-4 minutes on each side or until golden brown.