2Chop onion, slice celery and carrots as thinly as possible, I used my mandolin, and mince garlic. Place veggies and meat in large soup pot with olive oil or butter. Simmer until veggies are tender and meat is brown, add canned tomatoes and beef stock. Simmer 1 hr. longer. Skim any excess fat from top.
3Add potatoes and frozen peas and simmer about 30 min. longer until potatoes are fork tender.