2 tablespoons extra virgin olive oil
1 pound chicken , boneless skinless breast halves, cut crosswise into thin strips
3/4 teaspoon salt, divided
1/4 teaspoon ground black pepper
4 tablespoons unsalted butter
1 medium red onion, thinly sliced
8 garlic cloves, thinly sliced
1/4 teaspoon crushed red pepper flakes
1/3 cup chopped parsley
1 tablespoon lemon juice
2 cups hot cooked rice