Eggplant Steak Frites with Chimichurri

Name: Eggplant Steak Frites with Chimichurri
Ingredients: 1 1/4 c. packed fresh parsley leaves; 3 tbsp. packed fresh oregano leaves; 2 garlic cloves, chopped; 1/3 c. extra-virgin olive oil; 1/4 c. red wine vinegar; 1/2 tsp. red pepper flakes; Kosher salt; 1 large eggplant (about 1 ½ pounds), trimmed, sliced lengthwise 1/4-inch thick; 1 1/2 tsp. kosher salt; 2 tbsp. extra-virgin olive oil; Freshly ground black pepper; 4 medium russet potatoes, scrubbed and cut into ½-inch wedges; 1 tsp. kosher salt