Mac and Queso with Sausage

Name: Mac and Queso with Sausage
Ingredients: Kosher salt; 6 ounces cavatappi or fusilli; 3 hot turkey sausage links (about 8 ounces), casings removed; 1 tablespoon all-purpose flour; 3/4 teaspoon chili powder; 1/4 teaspoon ground cumin; 1 cup whole milk; 4 ounces processed cheese (such as Velveeta), cubed; 2 large eggs, lightly beaten; 1/3 cup sour cream; 1 10-ounce can diced tomatoes with chiles, drained; 1 cup shredded Mexican cheese blend (about 4 ounces)