Keto Jalapeño Popper Casserole
1 lb ground beef
8 oz cream cheese, softened
1 cup shredded cheddar cheese
1 cup shredded mozzarella cheese
4 oz canned diced jalapeños, drained or fresh jalapeños, diced
1/2 cup mayonnaise
1 tsp garlic powder
1 tsp onion powder