Ingredient:

• 1 tablespoon olive oil
• 1 small onion, chopped
• 2 garlic cloves, minced
• 1 can (14-1/2 ounces) no-salt-added diced tomatoes, undrained
• 2 tablespoons Worcestershire sauce
• 1/4 teaspoon salt
• 1/4 teaspoon pepper
• 1/8 teaspoon crushed red pepper flakes
• 1 can (15 ounces) cannellini beans, rinsed and drained
• 1 can (14 ounces) water-packed artichoke hearts, rinsed, drained and quartered
• 6 ounces fresh baby spinach (about 8 cups)
• Additional olive oil, optional