Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Peel and dice the sweet potato into half-inch cubes, then toss them on the baking sheet with half of the olive oil, sea salt, and smoked paprika.
Roast the sweet potatoes for 15 minutes until they begin to soften and develop slightly golden edges.
While the potatoes roast, slice the bell peppers into thin strips and ensure the shrimp are peeled and deveined.
Add the shrimp and bell peppers to the baking sheet, drizzling with the remaining olive oil and seasoning with garlic powder and black pepper.
Return the pan to the oven for 8 to 10 minutes until the shrimp are pink and opaque and the vegetables are tender.
Divide the fresh arugula between two bowls and top with the warm roasted shrimp, sweet potatoes, and peppers.
Finish the dish by garnishing with thinly sliced scallions and a bright squeeze of fresh lime juice.