01 -
Heat olive oil in a 12-inch skillet over medium heat. Brown ground beef and onion in the skillet until the meat is no longer pink and onions are soft and translucent.
02 -
Add the taco seasoning, Rotel tomatoes (including juice), spaghetti noodles, and water.
03 -
Bring to a boil over high heat. Once the water comes to a boil, reduce heat to low, cover, and simmer for 15 minutes.
04 -
Remove from heat. Sprinkle half of the cheese into the pan and stir to distribute the cooked spaghetti and cheese throughout the pan.
05 -
Top with remaining cheese and cilantro. Serve.