Heat a large pot on medium high heat. Add your tablespoon of olive oil to the pot and sauté your diced onions, garlic and green peppers for about 2-3 minutes.
Add your Italian seasoning, paprika, onion powder, garlic powder, and chopped parsley to the sautéed vegetables. Mix well for another minute or two.
Push your sautéed vegetables to the side and add your ground meat to the center of the pot. Brown and break your meat up into small pieces. (Use a potato masher to make your life easier)
Add your sugar, salt, and pepper to the meat and veggie mixture. Mix together then add your carton on tomato sauce to the mixture. Mix until everything is well combined.
Turn the heat down to a simmer, cover your pot, and let the sauce cook down for 10-15 minutes. (This will be a great time to cook and drain your pasta)
Adjust your homemade spaghetti sauce with salt and/or pepper to your desired taste and enjoy!