Rub the salmon with half of the olive oil and sprinkle evenly with the Old Bay seasoning; place salmon in a shallow baking dish.
Toss the sweet potato cubes with the remaining olive oil and the kosher salt, spread them in a shallow baking dish or on a baking sheet, and roast in the oven for 20–25 minutes until tender but not mushy.
Place the salmon in the oven and roast for 18–22 minutes, until the fish is firm and flakes easily with a fork.
While salmon and sweet potatoes are cooking, heat a non-stick skillet over medium-high heat; add the shredded carrots and broccoli florets with 1/4 cup chicken (or vegetable) broth and sauté about 5 minutes until vegetables are just tender.
Divide the arugula and spinach between two bowls. Top each with the sautéed vegetables, then the roasted sweet potatoes.
Place half of the roasted salmon on top of each bowl, drizzle each with 1/2 tablespoon sriracha (or to taste), and garnish with lime wedges and chopped cilantro.