Kosher salt
1 1/2 pounds green beans, trimmed and cut into 1 1/2-inch pieces
1/4 cup red quinoa
2 tablespoons raw pepitas
2 tablespoons raw sesame seeds
2 tablespoons raw sunflower seeds
2 tablespoons extra-virgin olive oil
2 tablespoons balsamic vinegar
1 tablespoon crème fraiche
1 tablespoon honey
1 tablespoon Dijon mustard
1 teaspoon lemon zest, plus 1 tablespoon juice