Here's What You'll Need
french green beans, walnuts, olive oil, anchovy filets, herbs, red wine vinegar, capers, dijon mustard, whole grain mustard, sugar, salt, scallions
Heat a skillet, add chopped walnuts. Cook until fragrant, transfer to a bowl. Add olive oil and anchovies. Cook until anchovies are melted, then pour into a mixing bowl.
To the bowl with the anchovy oil, add chopped herbs, vinegar, capers, Dijon, whole grain mustard, and sugar. Whisk to combine, then set aside.
Add remaining oil to skillet, then heat. When hot, add green beans and cook until blistered. Season with kosher salt.
Pour the anchovy vinaigrette into the skillet with scallions, toss to combine. Transfer green beans to a serving bowl. Top with toasted walnuts, then serve.