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    Flat Out Burger - Fairfield 58 Post Road

    Closed11AM - 9:45PM
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    Entrees
    Appetizer
    Drink
    Toppings

    Entrees

    • Flat Out Classic Single

      Classic Smash Burger with Signature Flat Out Sauce, Yellow American Cheese, Diced Grilled Onions and Pickles on Soft Brioche Bun
      $11.50
    • Flat Out Classic Double

      Classic Double Smash Burger with Signature Flat Out Sauce, Yellow American Cheese, Diced Grilled Onions and Pickles on a Soft Brioche Bun
      $14.50
    • Flat Out Spicy Single

      Single Smash Burger with Yellow American Cheese, Diced Grilled Onions, Signature Spicy Flat Out Sauce and Grilled Jalapeños on a Soft Brioche Bun
      $11.65
    • Flat Out Spicy Double

      Double Smash Burger with Yellow American Cheese, Diced Grilled Onions, Signature Spicy Flat Out Sauce and Grilled Jalapeños on a Soft Brioche Bun
      $14.65
    • Quarter Pounder Burger Single

      Single Quarter Pound Burger with Signature Flat Out Sauce, Yellow American Cheese, Diced Grilled Onions and Pickles on Soft Brioche Bun
      $12.75
    • Quarter Pounder Burger Double

      Double Quarter Pound Burger with Signature Flat Out Sauce, Yellow American Cheese, Diced Grilled Onions and Pickles on Soft Brioche Bun
      $14.81
    • Flat Out Veggie Single

      Single Veggie Burger with Signature Flat Out Sauce, Yellow American Cheese, Diced Grilled Onions and Pickles on Soft Brioche Bun
      $9.89
    • Flat Out Veggie Double

      Double Veggie Burger with Signature Flat Out Sauce, Yellow American Cheese, Diced Grilled Onions and Pickles on Soft Brioche Bun
      $13.89
    • Flat Out Turkey Single

      $9.99
    • Flat Out Turkey Double

      $12.65
    • Superbowl Game Regular Burger Bundle

      Twelve classic smashburgers. Topped with grilled onions, melted yellow American cheese, pickles, and our regular special sauce on a lightly toasted, buttered brioche bun. Includes 1 pound sack of crispy fries and 6 regular special sauces on the side. Built for sharing.
      OUT OF STOCK
      $118.32
    • Superbowl Game Spicy Burger Bundle

      Twelve smashburgers, finished with grilled onions, yellow American cheese, jalapeños, and our spicy special sauce. Served on a toasted, buttered brioche bun. Includes 1 pound sack of crispy fries and 6 spicy special sauces on the side.
      OUT OF STOCK
      $118.32
    • Superbowl Game Regular & Spicy Burger Bundle (Half & Half)

      Six regular smashburgers and six spicy smashburgers. Includes 1 pound sack of hot, crispy fries and 6 sauces on the side (3 regular, 3 spicy).
      OUT OF STOCK
      $118.32
    • Superbowl Game Regular Double Bundle

      Twelve double smashburgers stacked with two crispy-seared patties each. Loaded with grilled onions, melted yellow American cheese, pickles, and our regular special sauce on a toasted, buttered brioche bun. Includes 1 pound sack of hot, crispy fries and 6 regular special sauces on the side.
      OUT OF STOCK
      $144.67
    • Superbowl Game Spicy Double Bundle

      Twelve double smashburgers . Topped with grilled onions, yellow American cheese, jalapeños, and our bold spicy special sauce on a toasted, buttered brioche bun. Includes 1 pound sack of hot, crispy fries and 6 spicy special sauces on the side.
      OUT OF STOCK
      $144.67
    • Superbowl Game Regular and Spicy Double Bundle (Half and Half)

      Six regular double smashburgers and six spicy double smashburgers. Includes 1 pound sack of hot, crispy fries and 6 sauces on the side (3 regular, 3 spicy).
      OUT OF STOCK
      $144.67
    • Veggie Superbowl

      OUT OF STOCK
      $135.00

    Appetizer

    • Flat Out Fries

      Crispy Golden Fries Matchstick Fries
      $5.27
    • Flat Out Loaded Fries

      Classic Fries with a chopped up Cheese Burger with Signature Flat Out Sauce and Diced grilled onions
      $13.50
    • Flat Out Veggie Loaded Fries

      Classic Fries with a chopped up Veggie Burger with Signature Flat Out Sauce and Diced grilled onions
      $14.80
    • Flat Out Spicy Loaded Fries

      Classic Fries with a chopped up Cheese Burger with Signature Spicy Flat Out Sauce, Diced grilled onions, and Grilled Jalapeños
      $14.64
    • Sweet Potato Fries

      OUT OF STOCK
      $6.15

    Drink

    • Mexican Coke

      Coca-Cola Original Taste — the crisp, refreshing taste you know and love
      $4.12
    • Diet Coke

      Take a Diet Coke break with this refreshing, no-calorie soft drink
      $3.48
    • Sprite

      Classic, cool, crisp lemon-lime flavored taste that's caffeine free
      $4.12
    • Fanta Orange

      Liberate your every day with fizzy and refreshing fruit-flavored Fanta soda pop
      OUT OF STOCK
      $4.12
    • Topo Chico

      Topo Chico has always been known for the legend surrounding its origins. Whether you believe in the legend or not, you'll still be able to enjoy the crisp, no-calorie taste of Topo Chico.
      OUT OF STOCK
      $4.12
    • Poland Spring Water

      $2.35

    Toppings

    • Regular Sauce

      $1.00
    • Spicy Sauce

      $1.00
    • Pickles

      $1.00

    All hours
    Sunday11:00 am - 9:45 pm
    Monday11:00 am - 9:45 pm
    Tuesday11:00 am - 9:45 pm
    Wednesday11:00 am - 9:45 pm
    Thursday11:00 am - 12:45 am
    Friday11:00 am - 1:45 am
    Saturday11:00 am - 1:45 am
    Restaurant info

    Come in and enjoy!

    Location

    58 Post Road, Fairfield, CT 06824

    Directions

    Toast logo

    333 Summer Street
    Boston, MA 02210

    © 2026 Toast, Inc.

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