3 gouda onion sweet potato fries Recipes

yellow onion, russet potatoes, yukon gold potatoes, purple potatoes (approx . 1 lb.), sweet potato, extra virgin olive oil, coarse salt, freshly-ground pepper, half-and-half , used separately, coarse salt, freshly-ground pepper, flour, grated gruyere cheese, grated cheddar cheese, grated gouda cheese

sweet potatoes (about 4) cut into 1/2-inch wedges, olive oil, salt and pepper, fennel bulb cored and thinly sliced, onion thinly sliced, fresh lemon juice, ground beef chuck, gouda sliced, hamburger buns, arugular for serving