There’s something distinctly American about 333 Belrose. The entire dining experience—from the pretty, friendly hostesses to the almost overwhelmingly colorful art on the walls to the size of the portions and the exuberance of the preparations—bears the mark of this big, brash, beautiful place we call home.

Most of the time, this works in the restaurant’s favor: When it succeeds, it does so with a brand of moxie that is characteristic of this side of the pond. (And even when it doesn’t, I felt as if it did so in good faith—not so much out of sloppiness but out of an over-enthusiasm for the preparations themselves.)

One of my favorite dishes was also one of the simplest. Cool cucumber soup ($6) was a clever remedy not only to the late-summer heat, but also to the gazpacho fatigue I’d been feeling lately (I reach my breaking point around mid-August every year). Pureed but not pulverized—so it still possessed a pleasantly chunky texture—the soup was brightened up with a hit of lime juice and given a sense of herbal freshness with a bit of fresh dill. Shallots, sour cream and Champagne vinegar also made appearances. But what struck me most was the clever use of yogurt, which not only lent the soup a pleasantly sour snap, but also added a certain velvety texture to it, and made the crunch of the cucumber that much more interesting.

The salt and pepper calamari ($10) was also an early success. Here, tender rings of fresh baby squid were dusted with an aggressively seasoned mixture of rice flour and pulverized panko breadcrumbs, then fried just enough to cook them through yet gently enough that they still gave the sensation of popping when bitten into.

That heavy-handed application of seasoning (which included chile powder and cumin) was the key to the dish. And despite the telltale tingle it produced in the back of the throat (aided and abetted by the slight pricks of heat on the tongue from the jalapeno chips throughout), it was far from overwhelming, offset as it was by a cooling green pumpkinseed aioli.

Broiled oysters ($14), however, left me underwhelmed because, paradoxically, they were so overwhelming. Lined up on the plate in increasing order of size, there was just too much going on in each half-shell to afford any one element the opportunity to shine. Or, for that matter, to allow for any sort of cogent whole to emerge.

Buried deep inside each shell there was a nice, plump blue point oyster, but the piling-up of accouterments obscured them: A pesto of jalapeno, arugula, cilantro, parmesan cheese and lime juice topped each one, lending it a spicy, green-flavored kick. Smoky-sweet roasted corn salsa provided the bass-note to the pesto’s treble. But these bold flavors seemed oddly out of place alongside the bivalve, and relegated the ostensible centerpiece of the dish to an unfortunately silent sideline.

The java pork tenderloin with mango-jalapeno salsa ($26), however, made fabulous use of sweetness, and, instead of employing it as the primary focus of the dish, used it to offset the other flavors on the plate. That sweetness was mainly provided by maple smashed yams of surprising lightness, and was countered by the smoky, almost bitter charring of the meat, which had been rubbed with a pesto that included mocha-java coffee, macadamia nuts, molasses, jalapenos, and rice vinegar. But none of this would have mattered had the meat itself not been as delicious and dizzyingly tender as it was. Think pork with the texture of filet mignon and you’re getting close.

Buttery diver scallops ($27) were pure silk on the inside, and paired with a poblano-tomatillo sauce and cilantro cream that stood as yet another example of the restaurant’s willingness to work with chiles (unfortunately not always the case in many suburban kitchens). And wood-grilled rib-eye ($31), whose darker flavors were cleverly echoed by the charred head of romaine, was accompanied by a creamy Caesar dressing that had been spruced up with a flambéed mixture of green peppercorns and brandy. (Make note of that sauce: It’s not mentioned on the menu, and some people may not be able to eat a dish with cream in it.)

Desserts (all $6), as seems to be par for the dining course these days, were half a step down: Lemon squares were so sweet as to be almost difficult to eat (Ms. Martini has a fierce sweet tooth, and even she couldn’t have more than a few bites), and the cheesecake, not made in-house, was a pleasant, if unexciting, rendition of the standard.

The mixed berry cobbler, however, was a standout. Strawberries, blueberries, blackberries, and raspberries, all tied together with the addition of orange liqueur, arrived beneath an unexpectedly hearty layer of biscuit-like short dough, steaming in their cake-cave and growing decadently soft and stewy in the process.

As far as service, it was friendly, reliable, and well-informed. I wish there had been more time between the collection of the appetizers and the arrival of the entrees (less than one minute had passed), but that was really the only service hiccup I encountered. And the waitress, when I ordered a bottle of pinot noir from the Finger Lakes of New York (a pleasant surprise on any wine list), made sure to inform me that it was likely to be a bit different from other pinots I may have tasted.

In fact, she went so far as to tell me that she personally didn’t love it, and to explain why. This, I think, was a good thing—evidence of the kind of personality and personal touch that is likely to be brought to bear on a meal at 333 Belrose. It was a uniquely American moment and, like so much else about the place, raised the experience beyond expectations. I’ll gladly drink to that—no matter where the wine is from.

333 Belrose is located at 333 Belrose Lane in Radnor and can be reached by phone at (610) 293-1000.