Heavenly Harvest Salad

Ingredients

• 2 pounds sweet potatoes, peeled and cut into 1-inch cubes
• 4 tablespoons olive oil, divided
• 1 tablespoon chili powder
• 3/4 teaspoon kosher salt, divided, plus more, to taste
• 1/2 medium red onion, thinly sliced
• 1 large lime, zested and juiced
• 2 (14-ounce) cans black beans, drained and rinsed
• 2 cups baby spinach, packed
• 1/4 teaspoon freshly ground black pepper, plus more, to taste
• 4 ounces feta cheese, crumbled