From the Kitchen of:  Pepper

Source: Note from Cheri:
This recipe was contributed to Fabulous Foods by the National Cattlemen's
Beef Association. Sometimes there is nothing like a good burger, and this
one delivers on all counts.
http://www.fabulousfoods.com/recipes/RV/Main_Course/

 

1 1/2	lb.	ground beef
4	slices	sweet onion
		vegetable oil
8	slices	Swiss cheese
4		crusty rolls, split and toasted
4		romaine lettuce leaves
4	slices	tomato

Sauce:

1/4	cup	mayonnaise
1	tbsp.	Dijon-style mustard

Combine sauce ingredients, set aside.

Lightly shape ground beef into four 3/4"-thick patties. Lightly brush onion
with oil. Place patties and onion on grill over medium, ash-covered coals.
Grill, uncovered, 13 to 15 minutes or until centers of patties are no
longer pink and onions are tender, turning occasionally (you could also
broil or pan broil the burgers). Season burgers with salt and pepper if
desired, after turning.

Approximately 1 minute before burgers are done, top each with 2 cheese
slices.

Meanwhile spread sauce on top half of each roll. Line bottoms of rolls with
lettuce and tomato; top with cheeseburger and onion. Close sandwiches and
serve.

Serves 4