Broccoli Cauliflower Ground Beef Casserole

For the beef:

• ½ tablespoon olive oil mild
• ⅓ cup onion you should need a little less than ½ of a small onion for that, minced, white or yellow
• ¾ pound ground beef lean
• ⅜ teaspoon onion powder
• ⅜ teaspoon garlic powder
• ¾ teaspoon smoked hot paprika
• ⅜ teaspoon salt
• ½ teaspoon black pepper ground

For the broccoli and the cauliflower:

• 4 ounces broccoli florets small, about 2 cups
• 5 ounces cauliflower florets small, about 1 ¾ cups

For the hash browns:

• 2 cups hash browns frozen shredded, about 5 ½ ounces

For the sauce:

• 8 ounces cream cheese full-fat block, softened
• ½ cup sour cream full-fat
• 1 large egg
• 6 tablespoons heavy cream
• 1 ½ tablespoons hot sauce such as Louisiana hot sauce
• 1 ¼ cups cheddar cheese grated, sharp, divided into ¾ cup and ½ cup