12 Ingredients That Completely Elevate A Standard Grilled Cheese
There are some foods that are perfect no matter when they're eaten, and top of the pile has to be the grilled cheese sandwich. A Redditor asked whether it was weird to have one at 7 a.m. and the overwhelming response was, unsurprisingly, "absolutely not." We love them so much we eat, on average, three of these sandwiches a month, according to a 2025 survey commissioned by Tillamook County Creamery Association. The study also shed light on the ways people across the United States cook their grilled cheese (in a frying pan was the most popular), but also the different ingredients they used to gussy up their beloved sandwiches.
You can play around with various breads — we've previously showcased focaccia as one of the absolute best for grilled cheese, for instance — and there's a mind-boggling range of cheeses to swap in and out. Cheddar remains the go-to for many devotees, though pepper jack, smoked Gouda, Havarti, and mozzarella (for that must-have pull) are all excellent alternatives. But is it possible to take a standard grilled cheese to another level entirely? You betcha! Here's a list of ingredients that will bring flavor, texture, and mouthfuls of oomph to a cheesy, comforting classic.
Mayonnaise
Millions of grilled cheese sandwiches become their beautiful golden selves thanks to the butter slathered on the outside of the bread. This oil will amp up the flavor by a factor of 10, but if your budget won't stretch to ghee, give mayonnaise a whirl. Many grilled cheese fans swear by the rich, unmistakable tang either homemade or store-bought mayo gives their sandos, while some mix it with butter for the best of both worlds.
Peppers
Biting into a warm grilled cheese is like wrapping your tastebuds in a crispy, salty comfort blanket. But even the best sandwich can be made even better with the addition of a little heat. Sprinkling a few pickled or candied jalapeños, chunks of roasted poblano, or a smear of pepper paste enables spice to enter the grilled cheese chat. Once tasted, you'll wonder how you ever managed without it.
Fruit
Some food pairings come and go, but sharp cheddar cheese and apple? They're BFFs for life. It makes sense to slip a few slices of the crisp fruit in your grilled cheese to give it a sweet, crunchy twist, but why stop at apples? Pears with blue cheese is another flavor match made in heaven (cook your grilled cheese in the air fryer for speedy results, by the way), while grapes are delicious alongside a range of cheeses. If you want an even more left-field ingredient for your grilled cheese, add some sliced persimmon and thank us later.
Caramelized onions
You need lots of patience when making caramelized onions, but once you've cracked them, they are the perfect way to make your grilled cheese into a truly luxe bite. Their blend of sweet and savory tastes divine when teamed with a good, sharp cheddar and toasted bread. The internet went wild for this combination in 2026 when it was "discovered," but for many foodies, it's a flavor pairing that's as old as time.
Spinach
For many people, grilled cheese is a comfort food, but it's not always one of the healthiest, especially if made with highly processed white bread and cheese. But a handful of fresh spinach tossed between those key ingredients is a quick, easy way to boost its nutritional profile. As well as bringing a dose of vitamins A and K, calcium, and iron, spinach adds a little extra color to your sando. You can grow it at home too, even if you have a shady garden.
Kimchi
We've previously revealed kimchi's ability to upgrade a grilled cheese, and we'd be remiss if this Korean delight wasn't included in the list. You can buy jars of this fermented, salted cabbage mixed with other veggies, and a generous spoonful added to a grilled cheese sandwich adds not only a sweet 'n' sharp zing but also a crunchy mouthfeel that's pretty much unbeatable. A portion of kimchi's good for us too, as it's low in calories but packed with fiber and vitamins.
Meat (and fish)
Many a grilled cheese sando includes a slice of store-bought ham, but the possibilities are just about endless when it comes to meat protein extras. Crispy bacon brings texture and a deep, umami saltiness to the table, while smoked chicken or turkey adds incredible complexity. Give your grilled cheese a bougie makeover with some seasoned prosciutto or pancetta, or take things in an unexpected flavor direction by sliding pears and smoked trout between sourdough slices. Yum!
Tomatoes
It's a truth universally acknowledged that a simple dish done well can be mindblowing — think grilled cheese with a bowl of tomato soup. The same goes for the addition of sliced, fresh tomatoes to that iconic sando. What better way to honor one of the iconic "mortgage lifter" toms? Or, if you have a glut of the fruit, use up some of your excess tomatoes and make sundried versions or tomato jam for this sandwich, too. Just remember to let your tomato and grilled cheese cool for a while before chowing down!
Potato chips
The potato chip sandwich is, as every foodie worth their salt knows, in a class of its own, but combining the crunch of chips with the ooey-gooey softness of grilled cheese is top-tier stuff. Some people stick to ordinary potato chips, while others go for the extra-crunchy kettle kind. Yet, the honest-to-goodness truth is, as far as the texture is concerned, it doesn't really matter. The flavor of chip you choose, however, does. Lightly salted chips are fine, but you can push the boat out even further with dill pickle or even Cool Ranch flavors.
Pesto
Many people can take or leave pesto when it's mixed with plain pasta, but add it to a grilled cheese and you've got yourself a taste explosion. The blend of basil, olive oil, and pine nuts works wonders with mozzarella, but we'd recommend trying a sharp cheddar, too. Yes, these are two bold flavors, but in a grilled cheese, each part of the flavor combination often enhances rather than cancels out the other.
Fig jam
Hot honey has long been a fave for grilled cheese aficionados, but it's not the only way to bring a zing of sweetness to this snack. Figs are amazing paired with goat's cheese — definitely a grilled cheese option — and fig jam is a good workaround if you can't get the fresh fruit. Alternatively, you can opt for a good Gruyère or a fancy artisanal hard cheese, then dollop some fig jam on top. Cook it how you like it and devour!
Rosemary butter
If you're one of those people who use this condiment to boost their grilled cheese, but we're betting we can lure them back to butter with one proviso: add some rosemary to it. Those who love this fragrant, woody herb know it pairs beautifully with meats and has some interesting health benefits. But mixed with butter in a grilled cheese sando and teamed with tangy feta, it's an intriguing new version of this flavorful comfort food.