Lentil Soup with basil

2 -3 tablespoons olive oil 3 tablespoons pancetta , chopped (or ham) 1 large onion , chopped 2 stalks celery , chopped 2 carrots , diced 5 garlic cloves ,[...]

1 1/4 cups lentils (green or brown) 2 small carrots or 2 medium carrots , diced 2 cups mushrooms , sliced 3 stalks celery , diced 1 medium onion , diced 2[...]