In a large saucepan, combine water, 1 tablespoon of olive oil, salt, and pepper; bring to a boil.
Stir in the long grain rice.
Reduce the heat and simmer, covered, for 15-17 minutes or until the liquid is absorbed and the rice is tender.
Sprinkle taco seasoning over both sides of the chicken breast.
In a large skillet, heat the remaining 1 tablespoon of olive oil over medium heat.
Add the chicken and cook for 4-5 minutes on each side, or until an instant-read thermometer reads 165°F.
Heat the black beans or pinto beans in a microwave until warm.
Stir cilantro, lime zest, and lime juice into the cooked rice; divide the rice evenly among four bowls.
Slice the cooked chicken and arrange it over the rice. Top with warmed beans and your favorite optional toppings like pico de gallo, shredded cheese, or avocado.