One-Pot Pasta Bolognese

Ingredients

• tablespoon extra-virgin olive oil
• ounces lean ground beef
• large onion, chopped
• garlic cloves, minced
• dry red wine
• teaspoon kosher salt, plus more for seasoning
• teaspoon red pepper flakes
• water
• ounces uncooked penne pasta
• can crushed tomatoes in purée or good tomato sauce
• shredded mozzarella cheese