Boil the Pasta: Bring a large pot of salted water to a rolling boil. Cook the spaghetti until al dente, about 8-10 minutes. Drain and set aside.

Sauté the Onions: Heat olive oil in a skillet over medium heat, then add diced onion and sauté until soft and translucent, about 4-5 minutes.

Add the Garlic: Stir in minced garlic and cook for 30 seconds until fragrant.

Brown the Beef: Add ground beef and cook for 5-7 minutes until browned. Drain grease if necessary.

Season the Mixture: Add taco seasoning and stir for 1 minute.

Incorporate Tomatoes and Sauce: Add diced tomatoes, tomato sauce, and beef broth. Simmer for 5 minutes.

Add Creaminess: Lower heat and stir in cream cheese until melted, about 2-3 minutes.

Combine the Spaghetti: Toss in cooked spaghetti and mix thoroughly.

Melt the Cheese: Sprinkle cheddar cheese over the mixture and stir until melted.

Final Seasoning and Serve: Taste and adjust seasoning with salt and pepper. Garnish with cilantro or parsley.