Two medium sized sweet potatoes
Two pounds ground beef
1 carrot diced
1 piece of celery diced
couple mushrooms diced
1 tablespoon Dijon mustard
2 tablespoons tomato paste
1 teaspoon onion powder
Set oven to 400•. Peel and cut up sweet potato and steam until soft.
Meanwhile cut up your veggies and add to a bowl with your meat and spices.
Mash up the potato and allow to cool for a few minutes since you will be mixing with your hands.
Mix everything in a large bowl and form into meatballs.
Place into a baking dish.
Cook for around 30 mins. depending on the size of the meatball.