In a large, deep sided skillet, add either ½ cup of vegetable broth or water over medium-high heat. Add rice, onion, garlic, celery, bell peppers, carrots, jalapeño, cumin, coriander, chili powder and paprika. Stir until lightly browned. In another pot, bring 4 cups of vegetable broth and bay leaf to a boil. Add to rice mixture. Cover, lower heat and simmer for 15 minutes. 0Add beans, tomatoes, corn, salt, freshly ground pepper and cayenne. Stir, cover and simmer for 25 more minutes, or until liquid is absorbed. Remove from heat and remove bay leaf. Taste for seasonings and add parsley. Serve with a green salad or top with fresh chopped onions, tomatoes, and diced jalapeños.