Preheat the oven to 400 degrees. Spray casserole dish with nonstick cooking spray, set aside.
Bring a pot of salted water to a boil and cook egg noodles to aldente (cook one minutes less than package directions indicate). Drain well.
Place the empty pot the noodles were cooked in back on the stove over medium-high heat. (No need to dirty two pots!) Add the olive oil.
Add the ground beef to the large skillet over medium heat. Cook for 4-5 minutes, breaking up the meat with a spatula. Remove excess grease if desirerd.
Next add the onion and seasoning to the pan - salt, pepper, garlic powder and Italian seasoning. Cook for an additional 3-5 minutes, until onion has softened and beef is completely cooked.
Now add the tomato sauce, canned tomatoes and Italian to the beef mixture and stir to combine.
Mix the noodles into the pan with the beef and sauce, toss to combine. Add 2 cups of cheddar cheese, mix again.
Pour the meat sauce mixture into a 9"x13" baking pan that's been coated in cooking spray. Top with the remaining cup cheddar cheese.
Bake the ground beef and egg noodle casserole for 10-15 minutes or until cheese is melted, enjoy!