Uno Pizzeria & Grill’s Rattlesnake Pasta is one of the more searched copycat recipes online — and also one of the most frequently misattributed. Dozens of recipe sites call it “Texas Roadhouse Rattlesnake Pasta.” Texas Roadhouse does not have a Rattlesnake Pasta on their national menu; their only rattlesnake item is the Rattlesnake Bites appetizer (fried jalapeño-cheese balls). The pasta is Uno’s, confirmed active on their menu as of 2025.
The dish is a spicy, cheesy cream sauce over penne with sautéed chicken breast, pickled jalapeños, and fresh jalapeño slices on top. Uno’s has described the sauce two ways: the current menu calls it “spicy alfredo,” while widely cited menu copy calls it a “spicy asiago cream sauce.” The asiago version is the one worth copying. Asiago has a nuttier, more pungent character than Parmesan that gives the sauce a depth a straight Parmesan alfredo doesn’t have — use asiago as the backbone and cheddar as a finisher, and you land much closer to the restaurant flavor than a plain alfredo does.
The second accuracy point is the jalapeño brine. One to two tablespoons of the liquid from the pickled jalapeño jar goes into the sauce. It is tangy, faintly spicy, and vinegary — it threads jalapeño flavor through every bite of cream rather than concentrating it in the spots where a jalapeño piece happens to land. Most copycat recipes drain the jalapeños and discard the brine. Keep it.
The “rattlesnake” heat is layered: pickled jalapeños in the sauce for a mellow, round warmth; brine throughout for an even background tingle; and fresh jalapeño slices on top for a sharp, bright vegetal punch when you hit one. That three-way heat structure — not just “spicy cream” — is what makes the dish memorable.
TL;DR: Use asiago (not just Parmesan), add jalapeño brine to the sauce, and top with fresh jalapeño rounds. The restaurant version is ~1,410 calories; this home version is roughly 870 per serving across four portions.
