01 -
Heat olive oil in a 12-inch skillet over medium heat. Add the ground beef and chopped onion, cooking until the beef is no longer pink and the onions turn translucent.
02 -
Add the taco seasoning, undrained Rotel tomatoes, uncooked spaghetti noodles, and water to the skillet. Stir to combine thoroughly.
03 -
Bring the mixture to a boil over high heat. Reduce heat to low, cover, and simmer for 15 minutes until pasta is tender and most of the liquid has been absorbed.
04 -
Remove the skillet from heat. Sprinkle half of the shredded cheddar cheese into the pan and stir until well distributed.
05 -
Top with the remaining cheese and freshly chopped cilantro before serving.