Loaded Cheeseburger Fry Bake - cookrisp

Ingredients

• 4 cups frozen French fries
• 1 medium onion, chopped
• 2 cloves garlic, minced
• ½ cup diced pickles (optional)
• ¼ cup milk
• 1 tbsp mustard
• 1 lb ground beef
• ½ cup shredded mozzarella cheese (optional)
• 2 cups shredded cheddar cheese
• 1 tsp salt
• ½ tsp black pepper
• 1 tbsp olive oil
• 1 cup ketchup