Cheesy Herb Sweet Potato and Egg Muffin Cups

Ingredients

• 2 tablespoons olive oil
• 1 teaspoon onion powder
• 2 1/2 cups peeled and grated sweet potatoes
• 2 teaspoons freshly chopped thyme leaves
• 1/2 teaspoon kosher salt
• 1 ounce finely grated Pecorino cheese
• 6 large eggs
• 1/8 teaspoon freshly ground black pepper