Cook the egg noodles or pasta according to package instructions. Drain and set aside.
Heat the vegetable oil in a large skillet or wok over medium-high heat.
Add the beef or lamb strips and cook until browned and cooked through. Remove the meat from the skillet and set aside.
In the same skillet, add the sliced onion and minced garlic. Sauté until the onion is translucent.
Add the julienned carrots, bell pepper, and shredded cabbage. Stir-fry until the vegetables are tender-crisp.
Stir in the soy sauce, oyster sauce, and tomato paste. Mix well.
Pour in the beef or vegetable broth and bring to a simmer. Cook for a few minutes until the sauce slightly thickens.
Return the cooked meat to the skillet and mix well with the vegetables and sauce.
Add the cooked noodles or pasta and stir to combine, making sure the noodles are well coated with the sauce.
Season with ground black pepper, ground cumin, and paprika if using. Adjust salt to taste.
Garnish with fresh cilantro or green onions if desired.
Enjoy your meal!