1. Cook onion in hot margarine in nonstick frypan over medium-low heat, stirring frequently, for 14 to 18 minutes or until lightly browned. Stir in caraway seed, if desired.
2. Meanwhile, place patties on baking sheet. Bake at 350 degrees F for 8 minutes. Turn patties. Bake 7 minutes more. Spread mustard on top of patties. Top with cheese. Bake for 1 to 2 minutes more or until cheese melts.
3. Spoon onion over top of patties.
ON THE GRILL:
Use a food thermometer to be sure patties reach minimum internal temperature of 165 degrees F.
Helpful Hints: This recipe slowly sautes the onion to intensify the flavors of its natural sugars. Watch the onion carefully and stir frequently to avoid burning and off-flavors.
Note: Recipe is vegan only if soy cheese and Morningstar Farms Grillers® Vegan Veggie Burgers are used.