Tripe in rustic style

Ingredients

• 600 g. of tripe
• 480 g. of cooked beans
• 100 g. of onion
• 1 carrot
• 1 blade of celery
• 200 g. of potatoes
• 1 stock cube
• 60 g. of tomato extract
• Some leafs of sage
• 4 teaspoonfuls of olive oil
• Salt and pepper