Grilled Arctic Char with Arugula and Cherry Tomato-Anchovy Brown Butter

This dish is a celebration of summer with two types of tomatoes, basil, and peppery arugula. Grilled arctic char is served on top of a tomato and arugula salad and covered with a cherry tomato-anchovy brown butter sauce. Goin's recipes tend to be on the complex side, but this one is relatively simple and comes together fairly quickly.

Two years ago: Cucumber Cooler
Three years ago: Fig, Prosciutto, and Arugula Salad
Four years ago: Egg and Pancetta Stuffed Tomatoes

Grilled Arctic Char with Arugula and Cherry Tomato-Anchovy Brown Butter (from The AOC Cookbook)

Ingredients
1 lemon zested and 4 tsp juice, divided
6 fillets arctic char, skin on
1 tbsp thyme leaves
1/4 cup chopped thyme leaves, divided
1 1/2 lbs heirloom tomatoes
2 tbsp sliced basil
4 ounces arugula
1/4 cup extra virgin olive oil, divided
8 tbsp unsalted butter
1 1/2 tsp minced anchovy
3/4 pint small cherry tomatoes, cut in half

1. Season char with lemon zest, thyme, and 2 tbsp parsley. Cover and refrigerate for at least 4 hours. (Goin recommends this for all of her fish recipes. I rarely marinate for more than 30 minutes and sometimes not even that much. Don't let time stop you from giving this a shot!)
2. Light the grill and while it's warming up, let the fish come to room temperature.
3. Core the heirloom tomatoes and cut them into 1/4" thick slices. Season with salt and pepper and scatter basil on top.
4. Toss arugula in a large bowl with 2 tbsp olive oil, 2 tsp lemon juice, salt, and pepper.
5. Divide half of the sliced tomatoes between 6 dinner plates. Add 2/3 of arugula on top. Place remaining tomatoes on plates and follow with the remaining arugula.
6. Brush char with remaining 2 tbsp olive oil and grill - 3-4 minutes skin-side down and a minute or so flesh side down. Place fish on arugula and tomato salad.
7. Meanwhile, place butter in medium saute pan. Cook over high heat a few minutes until brown and nutty. Add anchovy, cherry tomatoes, 3/4 tsp salt, and a few grindings of pepper. Cook for 30 seconds and add 2 tsp lemon juice. Stir in remaining parsley and spoon over fish and around the salad. Serve.