This green goddess tuna salad sandwich recipe is a revelation, bringing bright herbaceous flavors to an otherwise one-note meal. We fought over the bread choice—sourdough vs. English muffin—and you see who won. You can make the dressing in a food processor if you like, but it won’t be as smooth or have that bright green hue you get when you do it in a blender.
Step 1
Purée basil, parsley, tarragon, mayonnaise, sour cream, lemon zest, 2 Tbsp. lemon juice, and 2 Tbsp. oil in a blender until very smooth and pale green. Transfer dressing to a medium bowl and add tuna. Using a fork, break up tuna and incorporate into dressing. Mix in celery, shallot, and garlic; season with salt and lots of pepper.
Step 2
Toss chopped mixed herbs with remaining 1 tsp. lemon juice in a small bowl. Drizzle with a little oil, season with salt and pepper, and toss again.
Step 3
Build sandwiches with English muffins, tuna salad (you may have a bit extra), and herb salad.