Layered patties and vegetables with bell pepper sauce

Name: Layered patties and vegetables with bell pepper sauce
Prep time: 15 min
Cook time: 1 h 35 min
Total time: 1 h 35 min
Yield: 8 pieces
Ingredients: 20 - 30 g fresh parsley; 150 g spring onions; 900 g lamb shoulder meat; 1 tsp salt; 1 tsp ground white pepper; 400 - 500 g onions; 150 g red peppers; 20 g olive oil; 400 g canned whole tomatoes; 70 g tomato purée (concentrated); 200 g water; 400 g potatoes; 350 g fresh tomatoes; 200 - 250 g green peppers