01 -
In a large skillet set over medium-high heat, cook the ground beef until browned, breaking it up as it cooks. Add the diced yellow onion and continue to sauté until the onion is softened, about 3 minutes. If needed, drain excess fat.
02 -
Stir in the tomato sauce, Rotel tomatoes with green chilies, sour cream, taco seasoning, and hot sauce. Mix thoroughly to combine, then reduce heat to medium and let the sauce simmer for 10 minutes, stirring occasionally.
03 -
Bring a large pot of salted water to a boil. Add the spaghetti and cook according to package instructions until al dente, about 8-10 minutes. Drain thoroughly, reserving 1/4 cup pasta water if needed for consistency.
04 -
Add the drained spaghetti to the skillet with the sauce. Toss well to coat all the pasta evenly. Stir in shredded Colby Jack cheese until melted and the sauce is creamy.
05 -
Divide the taco spaghetti among plates or bowls. Top with sliced black olives, diced tomatoes, green onions, jalapeños, crushed chips, or lettuce as desired. Serve immediately.