braised romano beans

INGREDIENTS

• 1/2 cup extra virgin olive oil
• 1/2 cup minced celery
• 1/2 cup minced carrot
• 1 cup minced red onion
• 1 clove garlic, crushed
• 2 sprigs fresh rosemary
• 1 teaspoon tomato paste
• 1 cup peeled, crushed ripe tomatoes, preferably plum tomatoes, with their juices
• Salt and freshly ground black pepper
• 1 1/2 pounds romano beans (flat green beans), ends trimmed (or fresh cranberry beans in their shells).