Stuff peppers tightly with barley mixture; return stem ends to top of peppers. (health.com)
Preheat oven to 350 degrees and heat barley mixture, covered, for 20 - 30 minutes or until lheated through. (thebloomingplatter.com)
Mix garlic, lemon zest, and lemon juice into barley mixture, then mix in Parmesan 1/4 - cupful at a time, stirring until melted and well combined before adding more. (bonappetit.com)