01 -
Set oven temperature to 350 degrees Fahrenheit.
02 -
In a large skillet over medium-high heat, sauté ground beef and chopped onion until beef is browned and onion is tender, about 7 to 8 minutes. Drain excess fat, add minced garlic, and cook for an additional 1 to 2 minutes until fragrant.
03 -
Bring a large pot of water to a boil. Cook lasagna noodles for 8 minutes or until al dente, then drain and set aside.
04 -
Add taco seasoning and the amount of water indicated on the seasoning packet to the beef mixture. Simmer for 3 to 4 minutes until slightly thickened.
05 -
Stir in Rotel tomatoes, black beans, corn, enchilada sauce, tomato sauce, and salsa. Simmer for 5 minutes until flavors meld and mixture thickens slightly.
06 -
Spread approximately ½ cup of the beef mixture evenly on the bottom of a 13 by 9-inch baking dish. Layer about 4 lasagna noodles over the mixture. Add one-third of the remaining beef mixture followed by 1 cup shredded cheese. Repeat layering twice more, finishing with cheese on top.
07 -
Cover the dish with aluminum foil and bake for 25 minutes.
08 -
Remove the foil and bake for an additional 20 minutes until the cheese is bubbly and golden.
09 -
Allow the casserole to rest for 10 minutes before slicing to ensure layers set properly.