Place barley and 4 cups water in a medium saucepan; bring to a boil. Cover, reduce heat to low, and cook until water is nearly absorbed, 25-30 minutes. Stir in edamame and peas
and cook, uncovered, until barley absorbs all
of the remaining water, 5-10 minutes.
Remove from heat.
Stir in spinach; set aside.
Combine Worcestershire sauce, lemon zest, lemon juice, and sea salt in a small bowl, whisking well.