Cook Potatoes: Place the potatoes in a large pot and cover with cold salted water. Bring to a boil, then reduce the heat and simmer, uncovered, until fork-tender, about 10 to 15 minutes. Drain the potatoes and slice in half or quarters.
Cook eggs: While potatoes are cooling, add eggs to a pot of water and bring to a boil. Cook for about 6-7 min for a soft boiled egg. Remove and add to a bowl of ice water.
Cook tuna: Wash and pat dry tuna. Drizzle with olive oil, salt and pepper.
Add a little oil to a pan and let it get really hot. Add tuna and let cook for about 2 min per side depending on thickness.
Green beans: If you are french cutting the green beans, wash and place each one through the cutter. Add about an inch of water to the bottom of pot and add a steam basket. Add green beans and cook for about 5 min, you still want them to have a bit of a bite. Transfer to an ice bath.
Combine dressing ingredients in a mason jar and shake until combined. Season to taste.
Combine all the ingredients and pour dressing overtop salad. Enjoy!