Gnocchi Aglio e Olio

Name: Gnocchi Aglio e Olio
Prep time: 5 min
Cook time: 25 min
Total time: 30 min
Cuisine: Italian
Ingredients: 6 cloves garlic; 1/4 cup plus 4 tablespoons olive oil, divided; 2 (16- to 18-ounce) packages shelf-stable potato gnocchi, divided; 1/2 teaspoon kosher salt, divided; 1/2 teaspoon red pepper flakes, plus more for serving; 5 ounces baby arugula (about 5 packed cups); 1/2 small lemon; Whole-milk ricotta cheese, for serving; Flaky sea salt, for serving