Chili Cheeseburgers

Name: Chili Cheeseburgers
Ingredients: 2 1/2 pounds ground beef; Kosher salt and freshly ground black pepper; 3 good-quality hamburger buns; 1 cup grated sharp Cheddar; 4 cups chili, recipe follows, heated; 4 pounds ground beef; 6 cloves garlic, minced; Two 8-ounce cans tomato sauce; One 6-ounce can tomato paste; 1/4 cup chili powder, or more as desired; 2 teaspoons ground cumin; 2 teaspoons dried oregano; 2 teaspoons kosher salt; 1/2 teaspoon cayenne pepper, or more as desired; Two 15-ounce cans kidney beans, drained and rinsed; Two 15-ounce cans pinto beans, drained and rinsed; 1/2 cup masa harina (corn flour) or regular cornmeal