Ingredients:

•     2 lbs Ground Beef
•     3 tsp. Worcestershire sauce
•     1 ? tsp. Kosher salt, divided
•     1 tsp. freshly ground pepper, divided
•     3 Tbsp. olive oil
•     16 oz sliced baby bella mushrooms
•     1 medium onion, thinly sliced
•     8 slices Swiss cheese
•     8 2-oz whole-grain hamburger buns, toasted
•     1 cup barbecue sauce, divided
•     4 cups arugula

Preparation:

1. Heat olive oil over medium heat in a medium skillet. Add mushrooms and onions. Cook until tender, about 10 minutes, stirring frequently. Add ? tsp. salt and ? tsp. freshly ground black pepper. Keep warm.

2. Preheat gas or charcoal grill to 400°F. The fire should be quite hot; you should barely be able to hold your hand 3 or 4 inches over the grates. After the coals are gray, spray grates with cooking spray or brush with oil to help keep burgers from sticking. Combine Ground Beef, Worcestershire sauce, ? tsp. salt and ? tsp. black pepper in a large bowl, gently mixing until fully incorporated. Be careful not to over mix. Shape Ground Beef into 8 patties.

3. Place patties on grill and cook about 4 minutes per side for rare, and another minute per side for each increasing stage of doneness. Top each burger with Swiss cheese the last 2 minutes of cooking time or until melted.

4. Place burgers on bottoms of buns. Evenly top burgers with saut?ed mushrooms and onions. Drizzle 2 Tbsp. of barbecue sauce on each burger. Top each burger with ? cup arugula.

Source: www.beeflovingtexans.com