Contest-Winning Grilled Roast Beef Sandwiches

• 1 medium onion, sliced
• 1 medium green pepper, sliced
• 1/2 pound fresh mushrooms, sliced
• 2 to 3 garlic cloves, minced
• 2 tablespoons canola oil
• 1/4 teaspoon salt
• 1/8 teaspoon pepper
• 8 slices sourdough bread
• 16 slices Colby-Monterey Jack or Swiss cheese, divided
• 8 slices deli roast beef
• 1/2 cup butter, softened
• Garlic salt, optional

1. In a large skillet, saute the onion, green 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.
2. Butter outside of bread; sprinkle with garlic salt if desired. On a hot griddle or large skillet, toast sandwiches for 3-4 minutes on each side or until golden brown.

onion, green pepper, mushrooms, garlic, canola oil, salt, pepper, bread, swiss cheese, deli, butter, garlic salt

Taken from www.tasteofhome.com/recipes/contest-winning-grilled-roast-beef-sandwiches/ (may not work)