01Crush 1 clove garlic through press and combine with 1 t. soy sauce, 1/2 t. sesame oil, pepper flakes, and shrimp in bowl. Let stand 15 minutes.
02Put large pot of water on to boil for noodles.
03Mix remaining 1 T. soy sauce, 1/2 t. sesame oil, the lemon juice, sugar, and cornstarch in small bowl. Heat wok or large heavy skillet over high heat. Add peanut oil. Lightly crush remaining garlic and peel.
04Salt water and add noodles to boiling water; cook according to package directions, about 6 minutes.
05Add peeled garlic to oil with 3/4 of the scallions, zest, and ginger. Stir-fry until fragrant, about 30 seconds. Remove garlic. Add green beans and stir-fry until barely tender, about 3 minutes. Add mushrooms and bell pepper; stir-fry until tender, about 3 minutes.
06Drain noodles well; transfer to serving bowl and mix with 1 T. Oriental sesame oil and 1.4 of the scallions; toss well.
07Add shrimp with marinade to wok; stir-fry just until shrimp turn pink. Add lemon juice mixture and cook, stirring constantly, 20 seconds. Serve over noodles.