01 -
Preheat oven to 400F.
02 -
Cook spaghetti according to the directions on the package and then drain.
03 -
Dump the lean ground beef into a large sauté pan over medium-high heat. Crumble the ground beef well as it cooks. Once fully cooked, drain the grease from the pan.
04 -
Add the water and taco seasoning to the pan. Stir until all ground beef is coated in the seasoning.
05 -
Reduce the heat to low and add the tomato sauce to the pan. Stir well.
06 -
Add the cooked spaghetti to the pan and stir well.
07 -
Add the Rotel diced tomatoes and green chilies to the pan and stir.
08 -
Remove the pan from the heat. Add 1 1/2 cups shredded Mexican cheese blend to the pan and stir into the spaghetti until melted.
09 -
Place the taco shells in a 9 x 13 inch baking dish.
10 -
Scoop the spaghetti mixture into the taco shells.
11 -
Sprinkle the remaining 1/4 cup shredded cheese on top.
12 -
Place the dish in the oven and bake the tacos until the cheese on top is completely melted, about 4-6 minutes.
13 -
Remove the dish from the oven and serve the tacos immediately.