Warm rice and set aside.
In a large bowl, combine black beans, corn, bell pepper, red onion, and jalapeños.
In a small bowl, whisk together lime juice, olive oil, cumin, cilantro, salt, and pepper.
Pour dressing over bean mixture and toss gently.
Let sit for 5-10 minutes to allow flavors to meld.
Divide rice among bowls and top with bean mixture.
Add desired toppings.
Serve immediately.