Creamy cannellini beans, acidic tomatoes, fragrant garlic, and bright lemon juice help balance broccoli rabe's natural bitterness for a side that serves roast chicken beautifully.
Preheat oven to 425 degrees, with racks in middle and lower thirds. Season chicken with salt and pepper. Drizzle 1 teaspoon oil on a rimmed baking sheet and add chicken, skin side up. Bake on middle rack until chicken is cooked through, 45 to 50 minutes.
After 25 minutes, toss broccoli rabe and garlic with 1 tablespoon oil on a rimmed baking sheet and season with salt and pepper. Place vegetables on bottom rack and bake 15 minutes. Add beans, tomatoes, and almonds to sheet with broccoli rabe and bake until broccoli rabe is tender when pierced with a knife, 5 to 10 minutes. To serve, divide chicken and vegetables among 4 plates and drizzle with lemon juice.