sophisticated mac & cheese

Ingredients

• 1 pound package prepared short ribs, meat only, drain off any sauce
• 1 tablespoon olive oil
• 1 small onion, peeled and diced
• Salt
• freshly ground black pepper
• 1 teaspoon Italian seasoning
• 1 garlic clove, peeled and minced
• 1 cup red wine
• 2 medium ripe tomatoes, diced
• 1 cup crushed buttery crackers (such as Ritz), plus 6 more crackers for the topping
• 2 cups grated provolone cheese, divided
• 2 tablespoons unsalted butter, melted
• 1 tablespoon salt
• 8 ounces uncooked elbow macaroni
• 2 cups grated Fontina cheese
• 1 cup grated fresh mozzarella cheese
• 2 large eggs
• 1/2 cup milk
• 1/4 cup plain yogurt
• 1/2 teaspoon salt
• 1/4 teaspoon red pepper flakes