Bison Meatballs - Lettuce Entertain You

Ingredients

• 1 lb ground bison
• 1/4 cup + 2 Tbsp fresh breadcrumbs (finely minced bread, day old bread is best)
• 2 Tbsp whole milk
• 2 Tbsp butter
• 3 Tbsp diced onion, 1/4"
• 3 Tbsp diced celery, 1/4"
• 3 Tbsp diced carrots, 1/4"
• 2 cloves, garlic, finely minced
• 2 Tbsp parmesan cheese
• 1 tsp chopped fresh sage
• 1 tsp chopped fresh thyme
• 1 egg
• 1 tsp salt
• 1 tsp pepper
• Tomato sauce for serving