Smoky Beef Chili With Tortilla Chip Crust

Ingredients

• 4 1/2 lb. beef chuck roast, cut into 1-inch cubes
• kosher salt and freshly ground pepper, to taste
• 5 tbs. vegetable oil
• 3 large yellow onions, diced
• 2 carrots, peeled and diced
• 1 celery stalk, diced
• 2 red bell peppers, seeded and diced
• 10 garlic cloves, minced
• 2/3 cup chili powder
• 2 tbs. ground cumin
• 1 tbs. dried oregano
• 2 tsp. ground coriander
• 1 cup beef broth
• 2 cans (each 28 oz.) crushed tomatoes
• 1 can (15 oz.) kidney beans, rinsed and drained
• 1 can (15 oz.) black beans, rinsed and drained
• 1/4 cup finely ground cornmeal
• 8 oz. sharp cheddar cheese, shredded
• 3 cups tortilla chips
• guacamole for serving
• sour cream for serving