Step 1

Brown ground chuck in medium frying pan with mushrooms, onion and garlic. Drain excess fat; remove beef mixture from pan and wipe pan clean.

Step 2

Melt 1 teaspoon butter over medium-high heat in the same pan. Brown two slices of bread. Flip bread over and top each with one slice Swiss cheese. Top one slice of bread with 1/3 to 1/2 cup hamburger mixture. Place second slice of toasted bread on top and flip sandwich over one more time to melt cheese.

Step 3

Keep prepared Toasty Grilled Beef and Cheese sandwiches warm in oven while cooking the others.