One Pot Chili Mac and Cheese - Traeger Grills

Ingredients

• 2 Tablespoons unsalted butter
• 1 Medium yellow onion, chopped
• 2 Cloves garlic, minced
• 1 Pound ground beef, preferably 85% lean
• 1 Tablespoon chili powder
• 1 Teaspoon ground cumin
• 1 Teaspoon smoked paprika
• 2 Teaspoons onion powder
• 2 Teaspoons garlic powder
• 2 Teaspoons kosher salt
• 1 Teaspoon freshly ground black pepper
• 1 Can (28-oz) diced tomatoes, preferably fire roasted
• 1 Can (15-oz) tomato sauce
• 1 Can (4-oz) diced green chiles
• 3 Cups beef broth, divided
• 1 Tablespoon worcestershire sauce
• 1 Can (15-oz) kidney beans, drained and rinsed
• 16 Ounces dried short tube pasta, such as cavatappi
• 1 Cup half-and-half
• 2 Cups shredded Mexican blend cheese
• scallions, sliced
• jalapeno, sliced