Brown meat in 2T oil in a large pot over medium high heat for 8 minutes. Transfer to a bowl (with juices) and set aside. Reduce heat to medium.
Add 2T oil and onion to the pot and sweat, covered, until soft, about 5 minutes. Stir in garlic and tomato paste, cook until paste darkens, about 2 minutes. Add flour, stir to coat, and cook one minute more.
Deglaze with beer, scraping bits from bottom of the pot, then add broths, meat and juices, and thyme.
Bring to a simmer, reduce heat to low, cover and simmer one hour.
Stir in potatoes and carrot. Cook until potatoes are tender, about 12 minutes, then add peas, cabbage, salt & pepper. Simmer 5 more minutes.