In medium pan add mushrooms. Drizzle with olive oil and sprinkle with salt. Sauté on medium heat for 8 minutes. Remove mushrooms from pan and set aside.
Return pan to stove and add bacon. Cook on medium heat for 8 minutes. Remove from pan and drain.
Microwave patties according to directions. Top with cheese and microwave for one additional minute.
Place hamburger patty on bottom of bun. Top each with one slice of bacon and mushrooms. ENJOY!