Bakery hot dog burns • Ribs celery, finely chopped • Green onions, thinly sliced • Italian parsley, finely chopped • Lemons juice • More 1/3 cup extra-virgin olive oil • More 2 teaspoons herb garlic butter, divided • peeled/deveined shrimp • Kosher salt, divided • Pepper • truffle oil (optional) • Avocado, coarsely chopped •