To make this salad, start by preparing the crispy couscous. Prepare the couscous according to the package instructions, then set it aside.
Next, preheat your oven to 375 F.
Line a baking sheet with parchment paper and spread the couscous out across it, in an even layer.
Then, pour the olive oil, sea salt, and ground black pepper on top of the couscous and toss until the couscous is fully coated.
Transfer the baking sheet to the oven and bake the couscous for for 20 minutes. Then, turn the oven to broil and broil the couscous for 3 minutes, until it gets nice and crispy. Watch it carefully, so that it doesn't burn! Once the couscous is done, remove it from the oven and set it aside to cool.
Next, prepare the dressing. Add all of the dressing ingredients (the olive oil, white wine vinegar, lemon juice, lemon zest, garlic, kosher salt, and ground black pepper) to a small bowl and whisk until fully combined.
Set the dressing aside while you prepare the salad. Wash and chop the cucumbers and radishes and add them to a large bowl alongside the fresh dill, fresh mint, and crumbled feta cheese.
Pour the dressing over top of the salad and toss to fully combine.
Finally, top the salad with the crispy couscous and toss one more time. Once it's done, serve and enjoy!