To make Cilantro-Lime Broccoli Rice, heat a nonstick skillet over medium-low heat and brush with olive oil. Add the riced broccoli, the scallions, garlic, cilantro stems, salt, and a few grinds of pepper. Cook and stir for 1 minute, until lightly warmed but still bright green. Remove the pan from the heat and stir in the cumin, lime zest, and a squeeze of lime juice. Stir in the brown rice, if using. Season to taste and serve.