Place your chow mein noodles in a bowl and pour boiling hot water over them. Let them sit for 4-5 minutes, then strain
Preheat chili oil and peanut oil in a wok over medium high heat. Drop in your beef tenderloin, tossing your slices around in the wok constantly.
Add your garlic, ginger, and shallots, toss for about 30-40 seconds
Add your black bean paste, and coat evenly
Add peppers, tomatoes, and carrots, and toss in the wok for 3-4 minutes.
Add your cooked noodles and coat evenly in the sauce and vegetables. Add additional black bean paste if required.
Garnish with cilantro, green onion, and chopped birds eye chili.