Chipotle Barbecue Cheeseburger

For 4 burgers:
1 lb 85% lean ground beef
1/4 C. mayonnaise
1 Tbsp. mustard powder
1 Tbsp. honey
1 tsp. cider vinegar
1 red bell pepper, cored and thinly sliced
1 green bell pepper, cored and thinly sliced
1 yellow pepper, cored and thinly sliced
1/2 tsp. salt
1/2 tsp. pepper
2 chipotle peppers in adobo sauce
1/4 C. your favorite barbecue sauce
2 cloves of garlic
1 C. shredded cheddar cheese, divided
1/4 C. finely chopped black olives, divided
4 lg potato buns
olive oil
1 lg. tomato, thickly sliced

In a medium bowl, whisk together the mayo, mustard powder, honey, and vinegar. Add all of the bell peppers, tossing well to coat. Mix in a pinch of salt and pepper and set aside.
Heat grill or grill pan to medium-high.
In a blender or food processor, combine the chipotle peppers, barbecue sauce, and garlic. Puree until smooth. Transfer to a large bowl and add the ground beef, 1/2 tsp. salt and 1/2 tsp. pepper and mix well.
Divide the meat into quarters. Taking a quarter in your hand, make a well in the center and add 1/4 C. of the cheese and a sprinkling of the olives. Cover the well and carefully form the patty. Repeat with remaining quarters.
Coat the grill grates with oil and grill burgers about 4 min. on each side. Brush cut sides of buns with olive oil and place on grill for the last minute of cooking. Top burgers with pepper mixture and tomato.