You can swap the Bisquick for Red Lobster Cheddar Bay biscuit mix for a richer flavor.
Cornbread mix also works if you want a more Southern-style casserole.
Leftovers keep well in the fridge for up to 3 days and reheat beautifully.
This casserole is perfect for potlucks, busy weeknights, and those evenings when you just want everyone around the table.