Clean, wash and drain the salad. Peel onions. Dice 1 finely, cut 1 into rings. Turn rings in flour, fry in 1 tablespoon of oil and take out. Dab steaks dry and fry in 2 tablespoons of oil on each side for 4-5 minutes.
In the meantime wash and halve the tomatoes. Mix vinegar, salt and pepper. Fold in 3 tablespoons of oil. Season steaks with salt and pepper, wrap in foil.
Sauté the diced onion in the frying fat. Add beer, 150 ml water and broth, bring to the boil. Mix starch and 1 tbsp. water, thicken sauce with it.
Season with salt, pepper and 1 tablespoon of sugar. Mix salad, tomatoes and vinaigrette. Arrange everything. Serve with French fries.