Italian-Style Green Beans | America's Test Kitchen

Ingredients

• 1 tablespoon red wine vinegar
• 1 clove garlic, minced
• 1 medium onion, chopped fine
• 1 1 can (14 1/2 ounces) diced tomatoes, drained
• 2 tablespoons extra virgin olive oil
• 2 red bell peppers, seeded and chopped fine
• 2 portobello mushroom caps, sliced thin
• 2 pounds green beans, ends trimmed
• ground black pepper
• Salt
• 1/4 cup grated Parmesan cheese
• 1/4 teaspoon dried oregano
• 3/4 cup shredded mozzarella cheese