Lemony Cucumber-and-Herb Pasta Salad

INGREDIENTS

1 lb

short pasta (such as radiators, orecchiette, gemelli)

1 tsp

kosher salt, plus more for cooking pasta

6 tbsp

olive oil, divided, plus more for serving

2 tbsp

whole-grain mustard

1 tbsp

lemon zest plus 6 tablespoons fresh juice (from 2 lemons), plus 1 lemon half for serving

2 cloves

garlic, finely chopped or grated

1/2 tsp

black pepper

1/2 tsp

crushed red pepper

1 lb

Persian cucumbers, sliced

8 oz

feta cheese, crumbled

1 cup

packed fresh cilantro leaves and tender stems

1/2 cup

packed fresh mint leaves, torn if large