12 ounces Roma tomatoes (about 3), cored and coarsely chopped

2 3/4 cups low-sodium chicken broth

2 cloves garlic, peeled and smashed

1/2 medium onion, coarsely chopped

3/4 teaspoon ground cumin

3 teaspoons kosher salt, divided

2 tablespoons vegetable oil

1 1/2 cups long-grain white rice

1 1/2 teaspoons ground cumin, divided

1/2 teaspoon chili powder

1 bay leaf

1 pound boneless, skinless chicken breasts or thighs, cut into 1-inch chunks

1/4 cup barbecue sauce, plus more for serving

1 1/2 cups frozen corn kernels

1 (15-ounce) can black beans, drained and rinsed

Optional toppings: shredded cheese, chopped cilantro, sour cream, diced avocado, salsa, hot sauce, diced green onions, shredded lettuce, crushed tortilla chips, tortillas