01 -
Set oven temperature to 175°C (350°F) to prepare for baking.
02 -
Boil elbow macaroni according to package directions until al dente; drain thoroughly and set aside.
03 -
In a large bowl, blend ground beef, eggs, Italian-seasoned breadcrumbs, onion powder, garlic powder, salt, and pepper until just combined to maintain tenderness.
04 -
Fold cooked macaroni and half of the shredded sharp cheddar cheese into the meat mixture, mixing evenly without overworking.
05 -
Grease a 23x33 cm baking dish with nonstick spray. Transfer the mixture evenly into the dish and smooth the top.
06 -
Sprinkle the remaining shredded cheddar cheese over the top and drizzle evenly with ketchup.
07 -
Bake in the preheated oven for 45 to 50 minutes until the casserole is bubbly and the top is golden brown.
08 -
Allow the casserole to rest for 10 minutes to set before slicing and serving.