Almost-Famous Chimichangas

INGREDIENTS

• 2 tablespoons unsalted butter
• Kosher salt
• 1 small tomato, chopped, plus more for topping
• 1 15-ounce can refried beans
• 1/4 cup sour cream
• 3 cloves garlic, chopped
• Mexican rice, for serving
• 2 tablespoons chopped fresh cilantro
• Mexi-sauce, for topping (see below)
• 2 1/2 cups shredded rotisserie chicken
• 1 white onion, chopped
• Shredded lettuce, for topping
• 1/2 teaspoon ground cumin
• 1/4 teaspoon ground cinnamon
• 1 1/2 teaspoons chili powder
• 4 tablespoons vegetable oil
• 4 10-inch flour tortillas
• 1 jalapeno pepper, diced (remove seeds for less heat)
• 1 cup shredded monterey jack cheese, plus more for topping