Preheat oven to 450 degrees F. In bowl combine mint, lemon peel, garlic, the 1teaspoon salt, and pepper. Place chops on rack in shallow roasting pan. Brush both sides of chops with olive oil. Press mint mixture on both sides of chops. Roast, uncovered, 17 to 20 minutes (145 degrees F for medium-rare, 160 degrees F for medium).
Meanwhile, cook peas according to package directions. Drain. Place in food processor or blender. Add milk and 1/4teaspoon salt. Cover and process until nearly smooth. Transfer to bowl; stir in tarragon. Drizzle peas with melted butter; top with fresh herb sprigs. Place chops on bread slices alongside peas. Makes 4 servings.