01 -
Heat oven to 400°F.
02 -
Brown ground beef in large pot.
03 -
Add onion and garlic, cook until onion softens.
04 -
Add mushrooms, cook until tender.
05 -
Pour in beef broth and tomatoes.
06 -
Add steak seasoning, salt, pepper.
07 -
Bring to boil, reduce heat. Simmer 15 minutes.
08 -
Mix mayo and garlic powder.
09 -
Split buns, spread with garlic mayo. Toast buns 5 minutes until golden.
10 -
Serve soup in bowls.
11 -
Top with bacon and Swiss cheese.
12 -
Serve with toasted buns.