Bring a pot of water to a boil. Add the spaghetti and jumbo shells, cover, and cook until tender.

Mix all the seasonings (1 teaspoon each) and 3 tablespoons soy sauce into the beef, making sure it’s well coated. Sauté 1/3 of the beef until cooked, then add the cooked green beans and carrots and stir together.

Sauté the tomato sauce with onions until fragrant, then add the remaining beef. Season to taste with soy sauce or salt. For extra flavor, you can quickly sauté the spaghetti with butter and a sprinkle of oregano.

To assemble, stuff the sautéed beef, green beans, and carrots into the jumbo shells. When serving, place the spaghetti and stuffed shells on a plate, pour the beef sauce over the top, and garnish with cilantro, black pepper, and cheese if desired.