Place olive oil, garlic, onion, carrot, celery, salt and pepper into the Thermomix bowl and chop 2 seconds/speed 6.
Saute 6 minutes/Varoma/ speed 1.
Add mustard, tomatoes, liquid stock and potato and cook 20 minutes/100°C/Reverse/speed 1.
Add the sour cream to the Thermomix bowl and stir through using a silicone spatula until well combined with soup.
Meanwhile, heat a nonstick frying pan and cook half the bacon until crisp. Set aside for garnish.
Add the remaining bacon and beef mince to the frying pan and cook over a medium–high heat until browned and fragrant.
Add the cooked beef and bacon mixture and stir through.
Serve in large bowls, topped with grated cheese, Tempura- battered onion rings and sliced pickles.