Smokey Andouille Sausage with Caramelized Brussels Sprouts and Sweet Potatoes

Ingredients

• 3 tablespoons olive oil
• 1 teaspoon freshly ground pepper
• 1 large yellow onion, chopped
• 1 pound Brussels sprouts, halved
• 1 medium-sized sweet potato, peeled and diced into 1-inch cubes
• 12 ounces Andouille sausage, sliced into 1-inch pieces
• 1 teaspoon salt
• 1 teaspoon dried thyme
• 1 teaspoon garlic powder
• 1 teaspoon onion powder