Cook bacon and set aside to cool.
1/4 cup bacon
Chop onion and mushrooms into small pieces.
1/4 cup onion, 1/4 cup mushrooms
Heat olive oil in a pan on medium heat, then add garlic, onion, and mushrooms; sauté 5–7 minutes.
1 tsp garlic, 1 tbsp olive oil
Allow vegetables to cool.
Combine bacon, mushrooms, onion, garlic, and gorgonzola to create burger filling.
1/4 cup gorgonzola cheese
Form 8 equal-sized patties out of the ground beef.
2 lb 85/15 ground beef
Place equal amounts of filling on 4 patties, keeping edges clear.
Place remaining 4 patties on top and seal edges well.
Season each side and place in the fridge for a couple hours.
2 tsp Montreal Steak Seasoning
Preheat smoker to 225°F (use hickory or mesquite if possible).
Smoke burgers until internal temp reaches 130°F.
Turn heat up to ~450°F and open sear plate (or move to grill) to sear each side until 165°F internal.
Optional: add cheese at 155°F internal.
Rest 5–10 minutes, serve, and enjoy.