Wipe 2 mushrooms with a damp paper towel; remove stems + scoop out gills; heat 1 tbsp oil in a skillet over med-high + cook mushrooms 2-3 min per side until browned + tender; add salt/pep

Heat 1 tbsp oil in a skillet over high; cook burgers with salt/pep 2-3 min per side until cooked through

Toast 2 buns until warm + golden

Spread ½ container brie onto mushrooms; assemble burgers using 1 container garlic sauce; brie mushrooms; beef patties + divide between plates