Bring burgers and bacon to room temperature.
Preheat grill to high heat.
Place defrosted bacon in freezer for 15 minutes and then finely chop or pulse in a food processor.
Mix pepper, bacon and ground beef together and form into approximately 4-6 patties.
For medium-rare, grill for 4 minutes per side, while rotating 90° every 2 minutes. Keep your meat moving to ensure that it cooks evenly. Remove from grill when meat thermometer inserted into patty reads 120°F.*
Rest for at least 8 minutes.
Rub avocado with olive oil and season with salt. Grill face-down for 2 minutes, with a 90° turn after 1 minute. Set aside, and slice when cool.
Combine pepper, kosher salt, mayo, lime juice and chipotle paste and mix well.
Stack your burger, avocado slices and chipotle mayo and enjoy!
*If flare-ups occur due to the cooking bacon, move burger off flame briefly while flame dies down, then continue cooking.