Adjust rack to top position and preheat oven to 425 degrees. Line a baking sheet with foil. Wash and dry all produce. Trim and roughly chop scallions. Mince garlic. Dice tomato. Zest and quarter lime (quarter both limes for 4). Drain and rinse beans.

Pat chicken dry with paper towels. Drizzle with oil; season all over with salt, pepper, and half the Southwest Spice. Place skin sides up on prepared baking sheet. Roast until browned and cooked through, 28-32 minutes. TIP: If chicken skin isn’t crispy yet, broil for 2-3 minutes.

Meanwhile, in a small pot, combine rice, 3/4 cup water (11/2 cups for 4 servings), and a big pinch of salt. Bring to a boil, then cover and reduce to a low simmer. Cook until rice is tender, 15-18 minutes. Keep covered off heat until ready to serve.

While rice cooks, in a small bowl, combine scallions, 2 TBSP olive oil (3 TBSP for 4 servings), a pinch of garlic to taste, and juice from 1 lime wedge (2 wedges for 4). Season generously with salt and pepper. Taste and add more garlic or lime juice if you feel like something is missing.

Heat a drizzle of oil in a medium pot over medium-high heat. Add tomato and remaining garlic. Cook until softened, 1-2 minutes. Add beans, stock concentrate, 1/4 cup water (1/3 cup for 4 servings), remaining Southwest Spice, salt, and pepper. Simmer until thickened, 5-10 minutes. Turn off heat; stir in 1 TBSP butter (2 TBSP for 4). In a second small bowl, combine sour cream, half the lime zest, juice from 1 lime wedge (2 wedges for 4), and salt. Add water 1 tsp at a time until mixture reaches a drizzling consistency.

Fluff rice with a fork; stir in 1 TBSP butter (2 TBSP for 4 servings), remaining lime zest, and juice from any remaining lime wedges to taste. Season with salt and pepper. Divide rice and chicken between plates. Top rice with bean mixture and lime crema. Drizzle chicken with chimichurri.