In a large pot, heat the vegetable oil over medium heat. Add the finely minced white onion and sauté for about 3-4 minutes until translucent.
Add the minced garlic and sauté for an additional 1-2 minutes, making sure not to burn it.
Add the ground chuck to the pot. Sprinkle in ½ teaspoon of salt and cook until the meat is browned, breaking it apart with your wooden spoon (about 5-7 minutes).
Add the sliced hot dogs to the pot. Stir and cook for about 3 minutes until heated through and slightly browned.
Pour in the banana ketchup, canned tomato puree, and tomato sauce. Stir everything together until well combined.
Add the remaining ½ teaspoon of salt, sugar (if using), and water. Stir to combine and bring to a gentle simmer. Cook for 15-20 minutes, stirring occasionally, until the sauce thickens slightly.
Cook the spaghetti according to package directions. Drain in a colander and return to the pot.
Pour the sauce over the spaghetti and toss well to combine.
Sprinkle the shredded easy melt cheese over the top. Serve immediately or place under a broiler for a few minutes for a bubbly, golden finish.