Of the best hamburgers in Madrid
Peggy Sue's is, without a doubt, my favorite hamburgers place in Madrid. It is a small place is Amaniel street, subway Plaza de España or Noviciado, decorated with an American style of the fifties.
The menu is not very extensive, but the hamburgers are made with top quality meat, one of the best I have tasted in Madrid. They have specialties: the Peggy Sue, the Mary Lou and the Aretha Franklin, to which you can add some extra ingredients. If you like sandwiches better, in Peggy Sue's you have different options: the chicken sandwich, vegetables, salmon baguette...
They have delicious chicken fingers, fries or onion rings in the purest American style as starters. Desserts are another good point: brownie, NY cheesecake and cinnamon rolls.
The atmosphere is quiet and the service is not bad. They are quite fast. Moreover prices are reasonable, although do not expect McDonald's prices. A hamburger costs 5.95€, a sandwich about 5€ and desserts 3.60€. You also have "wallboxes" playing your favorite song of the fifties for 20 eurocents.
Ah, and they also have another restaurant on Glorieta de Bilbao. Be careful with the opening times, I recommend checking it on their original website.