In a large skillet, cook brown the sausage, crumbling as you go. Add in the red bell pepper and sauté for 3-4 minutes until tender. Stir in the cream cheese and allow it to melt completely.
Spray a 9x13 casserole dish with nonstick cooking spray and layer half of the corn tortillas in the bottom.
Layer the sausage cream cheese mixture over the tortillas. Top with the spinach and half of the shredded cheddar.
Add another layer of corn tortillas and lightly press down.
Beat the eggs, milk, salt and pepper until completely combined, then pour over the casserole.
Cover and refrigerate overnight.
In the morning, preheat the oven to 350F. Top the casserole with the remaining 1 cup of shredded cheese and bake COVERED for 40 minutes.
Remove the foil bake another 15-20 minutes until the center is set and cooked through.
Notes
Frozen Spinach:Thaw the spinach in a micorwave or according to the directions on the package. Using a strainer drain off as much liquid as possible. When you have removed as much water as you can place the spinach in a dish towel and press as much water out as you can. Make sure the spinach is very dry.Net carbs are 3.4 g per serving using keto ingredients