Drain bean sprouts thoroughly on paper towel, change towels as needed. Drain bamboo shoots and mushrooms. Partially scramble eggs in oil. Add bean sprouts, mushrooms, shrimp, bamboo shoots and rice and toss with fork. Stir in soy sauce, monosodium glutamate, sugar and bead molasses. Slightly mash mixture, then add barely defrosted pea pods, if desired. Continue stirring until pea pods are hot. Add lettuce and onions and toss until heated thoroughly. Serve immediately.