Egg and Veggie Breakfast Casserole with Turkey Sausage

This is the kind of breakfast that's just as useful cold from the fridge on a Tuesday as it is warm out of the oven on a Sunday. Turkey sausage stands in for the usual pork, browned with onion and bell pepper before it all gets folded into whisked eggs and a handful of spinach and baked until set.

Because it's built almost entirely from eggs, lean turkey sausage, and non-starchy vegetables, this casserole is naturally low in carbohydrate and added sugar, which is what earns it a spot in a blood-sugar-conscious breakfast rotation — no cereal, no syrup, just steady protein to start the day. Slice it into squares and reheat throughout the week.

It keeps well covered in the fridge for up to four days, and a single square reheats in under a minute in the microwave for a genuinely grab-and-go breakfast on the busiest mornings, no toaster or stovetop required.