1. Drain spinach extremely well for best texture 2. swap Greek yogurt for sour cream for a lighter version 3. use fresh spinach by sauteing 8 to 10 oz then cooling and squeezing dry 4. add more heat with extra red pepper flakes or chopped jalapenos 5. make ahead by assembling and refrigerating up to 24 hours then bake adding 5 to 10 minutes