Make a marinade by combining 2 tablespoons of soy sauce, 1 tablespoon of sesame oil, 1 minced clove of garlic, and 1 tablespoon of ginger. Marinate the chicken and the beef for at least 30 minutes if not 2 hours in the refrigerator.
Soak the saifun noodles in hot water for 15 minutes until they are clear, then drain. Reserve.
In a wok or big heavy pot on high heat, add 2 tablespoons of oil and once is hot, add half of the drained pieces of chicken and beef. Cook 3 or 4 minutes until the chicken is done. Remove the chicken to a bowl and keep warm. Repeat the same operation with the second half of chicken and beef then remove.
Add the remaining 1 tablespoon of oil to the same pot and then cook the vegetables garlic, green pepper, shallots, soybean sprouts, spinach, snap peas and carrots). Cook on high heat, stirring occasionally for about 5 minutes until the vegetables are done.
Then, add the remaining 2 tablespoons of soy sauce, noodles and chicken to the vegetables, mix it well for 2 minutes, add all the chopped cilantro, then remove from heat and serve!