Keto Cheesy Meatballs with Cauli Slaw

Ingredients

• 1 lb cauliflower
• 1/2 cup sour cream
• 1/4 cup mayonnaise
• 1 tbsp Dijon mustard
• 2 garlic cloves
• 1 tsp fennel seeds
• salt
• ground black pepper
• 1 1/2 lbs ground beef
• 1 yellow onion
• 1/2 cup shredded Parmesan cheese
• 1 tbsp tomato paste
• 1 tbsp Italian seasoning
• 1 tbsp butter
• 2 oz. cheddar cheese
• pepper