01 -
Preheat the oven to 175°C. Grease a 23x33 cm baking dish with oil or non-stick spray.
02 -
In a large skillet over medium heat, cook the ground beef until fully browned, breaking it apart while cooking. Drain any excess fat.
03 -
Add the diced onion and minced garlic to the skillet. Sauté for 2–3 minutes until the onion becomes translucent.
04 -
Stir in salt, black pepper, paprika, and dried oregano. Allow the spices to toast for one minute.
05 -
In a bowl, mix the sugar-free ketchup, mustard, and mayonnaise. Pour the sauce into the skillet and blend thoroughly with the beef mixture.
06 -
Transfer the beef mixture evenly into the prepared baking dish.
07 -
Sprinkle the crumbled bacon evenly over the beef mixture.
08 -
Whisk the eggs until well combined, then pour them evenly over the contents in the baking dish.
09 -
Scatter the shredded cheddar and mozzarella cheese evenly over the top.
10 -
Place in the preheated oven and bake for 25–30 minutes, until the cheese is fully melted and bubbly.
11 -
Allow the casserole to rest for several minutes after baking before slicing and serving.