Coulis is just a fancy term for a thick pur?e or sauce. Here, it’s a vibrant green pur?e with a minty finish, and it makes a delicious match for mild roasted halibut.
Roasted tomato wedges
Preheat oven to 400F (200C). Slice plum tomatoes into thick wedges. Brush with olive oil. Roast on a foil-lined baking sheet on bottom rack until golden-tinged, 10 to 15 minutes.