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If you thought convenience and nutrition couldn't go hand in hand, think again. Fast food sandwiches are a lunchtime staple for many, but treating yourself to a lunch on the go doesn't have to mean sacrificing on your protein goals. Despite their reputation for being indulgent, plenty of popular sub chains offer a wide range of protein-packed sandwiches, making it easier to grab a satisfying meal while also keeping your daily intake on track.

Naturally, the subs highest in protein tend to be those filled with meats, and once you start stacking a few different varieties in there, the protein content can quickly add up. From turkey and roast beef medleys to stacks piled with chicken, bacon, or cured meats, these hearty sandwiches deliver on flavor, texture, and overall indulgence factor, all while offering a serious protein boost that'll keep you feeling fueled until dinnertime. So, if you're looking for a quick, high-protein lunch that also satisfies your fast food cravings, give one of these top-rated fast food subs a try.

Firehouse Subs First up is an undeniably tempting offering from Firehouse Subs. The Engineer comes loaded with smoked turkey breast, melted provolone cheese, mushrooms, lettuce, tomato, and onion. Stacked up with a swipe each of mayo and deli mustard, these ingredients create a deeply savory flavor profile and a hearty bite, with the resulting sub packing a notable dose of protein. A medium-sized (eight-inch) Engineer sub contains 39 grams of protein, but if you go for the large version (12 inches), you'll get a whopping 70 grams. Either way, that's a significant chunk towards your daily intake. And, if you fancy making things even meatier, you could always add bacon to your stack for a small extra cost (usually around two dollars).

The Engineer has long been a popular pick amongst customers, and it receives frequent recommendations online. One fan dubbed it "the best sandwich I have eaten in a restaurant in a very long time" in their review on Tripadvisor, while others were impressed with the incredibly generous portion of turkey.

Jersey Mike's Subs (4865 24Th Ave,Unit 600,Fort Gratiot,MI)/Facebook A top pick on the cold subs menu at Jersey Mike's is the #13 The Original Italian. This features ham, provolone, and an array of flavor-packed cured meats — prosciuttini, cappacuolo, salami, and pepperoni. Ordered in the regular size, this sandwich contains a little over 46 grams of protein, and it's super easy to customize to your taste.

There are a few nifty ordering hacks you can use to get the very best out of the #13. Firstly, ordering "Mike's Way" is highly recommended. This means that in addition to the usual meat and cheese fillings, your Italian sub will also come topped with shredded lettuce, tomatoes, onions, oil, vinegar, salt, and oregano. This adds an extra burst of freshness, richness, color, and crunch that truly takes the sandwich to the next level. Another way to customize your sub is by switching out the standard white bread for wheat bread or rosemary Parmesan bread for a heartier or herbier approach. And extra toppings are always a great option. Think banana peppers, jalapeños, pickles, or mustard.

However you choose to order yours, The Original Italian is sure to impress. After trying the sandwich for the first time, one customer took to Reddit to share, "Honestly, this is one of the most flavorful and juicy sandwiches I've ever eaten," and plenty of others agreed, adding comments like "The 13 never does me wrong" and "Love their Italian."