Legume and porcini mushroom soup with polenta - Ricetta - Polenta Valsugana

Ingredients

• 1 package of Polenta Valsugana Express Yellow
• 200 g of blanched cranberry beans
• 200 g of blanched chickpeas
• 50 g of lentils
• 100 g of porcini mushrooms
• 1 stalk of celery
• 1 onion (large)
• 200 g of tomato sauce
• 1 clove of garlic
• 2 leaves of bay
• 1 stick of rosemary
• extra virgin olive oil
• salt, pepper