To make the Shrimp: Whisk together the marinade of lemon zest, garlic, olive oil, salt, and pepper. Add the shrimp and toss to combine. Let marinate for 20 minutes, no longer as the acid from the lemon will cook the shrimp.
Zaatar Chickpeas: Drain, rinse and pat dry the chickpeas. Heat a skillet, toss the chickpeas with a teaspoon of olive oil and toast on the hot skillet until they start to get lightly golden. Sprinkle with zaatar and set aside. Wipe the skillet, we will use it to cook the shrimp next.
Make the Greek Vinaigrette: In a lidded glass jar or clean jam jar, combine the lemon zest, lemon juice, red wine vinegar, garlic, shallot, oregano, salt, pepper, and olive oil. Whisk or shake the jar to combine. Taste and adjust the salt and pepper if desired. Set aside.
Preheat a skillet or grill pan to medium-high heat. Once hot, add the shrimp and cook stirring frequently for 2-4 minutes per depending on the size of your shrimp or until cooked through.
To assemble the salad add the chopped romaine to a large mixing bowl, alternatively divide everything into 4-5 personal sized bowls. Top with the zaatar’ed chickpeas, tomatoes, cucumber, red onion, bell pepper, kalamata olives, feta, parsley, mint, oregano. Toss to combine. Add the cooked shrimp and desired amount of the Greek vinaigrette and toss again to combine. Serve immediately with extra vinaigrette on the side!