In a small glass jar, add the chopped shallot, minced garlic, red wine vinegar, olive oil, sea salt, and freshly cracked pepper, to taste; whisk well, and set aside to let the flavors mingle.
Place the green beans in a large pot of well-salted boiling water for 3-4 minutes. Side Note: I like mine tender but still crisp.
Drain the water and immediately plunge the green beans into a bowl of ice water to stop them from cooking and preserve their bright green color. Drain and place on a towel to dry thoroughly.
Place the dried green beans in a serving dish.
Add the sliced onion and fresh dill.
Drizzle on the well-whisked salad dressing to taste. Toss until evenly coated.