Soup with beans ON-Somali

Ingredients: 
- Lamb (shoulder, brisket) 450 g, 
- Beans, canned bean 300 g, 
- Potato 500 g, 
- Onions 100 g 
- Tomato puree 60 g 
- 20 g butter, 
- Green 50 g 
- Spices, salt to taste. 
Preparation :
From fried meat with no fat to cook the broth, strain, add salt, put diced potatoes, bring to a boil, add the diced and spasserovanny onions in butter, tomato puree, beans, spices, cook 10 minutes. 
When serving, sprinkle with herbs.