Cook brown rice according to package directions.
In the meantime, prep the vegetables and gather all the ingredients. Cut the tails off the cooked shrimp. Add shrimp to a bowl and squeeze lemon over all the shrimp. Set aside for a few minutes.
Once rice is cooked, set aside. In a nonstick wok or large nonstick pan, add canola oil and preheat over medium-high heat. Stir in cooked shrimp and scallions; stir-fry for 1 minute.
Add cooked rice, celery, edamame or peas, soy sauce, and red pepper flakes. Cook for about 3 minutes, until heated through, tossing gently to coat all ingredients. Push rice mixture to the sides of wok or pan. Add eggs to the other side of the pan. Stir fry for about 1 minute or until the egg whites are completely cooked. Mix egg whites into rice/shrimp mixture. Add sesame oil, pepper, and stir fry ingredients all together until hot.
Serve immediately. Store leftovers in the refrigerator for 2 days.