For the quinoa: Pour the quinoa into a bowl and cover with cold water. Transfer to a fine mesh strainer and drain well.
Put 2 cups water in a medium saucepan and season with salt so it tastes like the sea. Bring to a boil, then add the quinoa. Stir, reduce the heat to a simmer and cook until the water is absorbed, around 15 minutes. Set aside.
For the shrimp and vegetables: Heat a wok or large skillet over high heat, then add half of the oil and all of the shrimp. Cook, stirring the entire time, until the shrimp are cooked through, 2 to 3 minutes. Remove the shrimp and set aside.
Add the remaining 1 1/2 tablespoons oil to the wok, followed by the broccoli, peppers, garlic, ginger and edamame. Cook, stirring the entire time, for 2 to 3 minutes. Add the soy sauce and agave, cooked quinoa and shrimp, then sprinkle with the lemon juice and sriracha and toss.