Grilled SPAM®, Tomato, Cheddar Cheese, and Sweet Onion Sandwiches

By AvidAngler

4.71 / 5

10min

15min

¼ cup spicy brown mustard
8 slices whole wheat bread
1 (12 ounce) can fully cooked luncheon meat (such as SPAM®) cut into 1/4 inch slices
8 slices Cheddar cheese
2 large tomatoes cut into 1/2-inch slices
1 sweet onion thinly sliced
¼ cup butter softened