Preheat oven to 450° F. Line a sheet pan with parchment paper and set aside.
Toss sweet potatoes and olive oil, ½ teaspoon of the salt and the smoked paprika in a large bowl. Transfer to sheet pan and bake for 25-30 minutes or until fork-tender (tossing once to prevent burning).
Meanwhile make the sauce: add yogurt through lime juice to a food processor and run until well combined. Season with the remaining ½ teaspoon salt.
Mix beans and corn in a small bowl. Slice cabbage, tomatoes, and avocado.
To serve, layer the cooked brown rice, sweet potatoes, beans & corn, cabbage, tomatoes and avocado slices in four bowls. Drizzle with cilantro lime sauce.