This family-owned spot serves an unorthodox cheese steak — topped with jalapeno cheddar cheese, grilled onions and Buffalo sauce. "The Heater" will "bring sweat to your brow." On Heat Seekers, owner Denise Campo said that if you're in the mood for "hot and tangy," this sandwich is for you.

In Old Town San Diego, spacious Cafe Coyote boasts Spanish architecture, an outdoor courtyard with a fountain, traditional music, and authentic Mexican food. As a certified Tequila House, the Cantina at Cafe Coyote knows its drinks, and dishes like Carne Asada and Carnitas are big favorites.

The Hell Burger at Rooster's Roadhouse is so hot you'll need to sign a waiver before chomping down on this slider. Roger Mooking and Aarón Sánchez did, yet even these Heat Seeker pros reached for the ice cream. Luckily, Rooster also offers less-spicy barbecue, like pulled pork nachos.

Lindo Michoacan has been serving up authentic Mexican cuisine for more than 20 years. Dig into gourmet specialties like savory Buey Al Cilantro, cubed rib eye steak in verde sauce with onion, cilantro and tomatillos, or Camarone Borrachos, shrimp simmered in lemon juice, garlic and tequila.

If you're looking for Cajun cooking in downtown Chicago, head to Heaven on Seven. The Southern-style food with a twist has been pleasing locals for more than 20 years. Try the Voodoo Shrimp, which Aaron Sanchez says is "packed with flavor," or the Hot As a Mutha pasta made with habanero peppers.

For the spicy side of Miami, heat seekers Aaron Sanchez and Roger Mooking head to CVI.CHE 105 where they serve Ceviche Anconero, a popular Peruvian dish made with corvina fish, octopus, calamari and a spicy blend of rocoto and chili peppers. For a cool down, diners love the passion fruit mousse.

Chef Peter McAndrews blends French, African and Sicilian flavors at this Italian spot, which offers seasonal dishes with fresh seafood and housemade pastas. On Heat Seekers, Aaron Sanchez tried their harissa, a "deep, earthy" North African chile paste that goes into many of the dishes on the menu.

For a bite of Jamaican heat, Aaron Sanchez and Roger Mooking trek to Aunt I's, named by the late owner's mother who knew "how to make a wicked jerk chicken." The recipe uses fiery Scotch bonnet peppers and allspice rub in every crevice. But the key to the popular oxtail stew remains a secret.

Feeling spicy? Try the chile-spiked oyster shooter, a "kicked-up" combination of oysters, horseradish and black pepper vodka. For dinner, there are plenty of mouthwatering, less spicy options, including lobster rolls, steamed littleneck clams in white wine and garlic, and grilled mahi mahi tacos.

On Food Network's Heat Seekers, Aaron Sanchez and Roger Mooking find fiery Mango Pepper Shrimp at Mama Jamaica's in San Diego, CA, a local cafe serving up spicy island classics.

Pay a visit to Big Al's, the self-proclaimed "home of the crawfish king," for some Cajun-country crawfish boils and Southern-style seafood dishes. New Orleans locals can't get enough of the crawfish, which are boiled in a secret mix of spices that includes cayenne pepper. Aarón Sánchez calls them "out of sight."

Heat lovers shouldn't miss the Mexican-Japanese fusion at this West Coast sushi bar. On Heat Seekers, Aaron Sanchez and Roger Mooking tasted the habanero-and-Sriracha-spiced Five-Star Roll, which arrives dressed with the signature "Shut Up Sauce" made with serranos, Thai chiles and lemon juice.

This family-run, vegan Thai restaurant boasts some of the hottest dishes in Seattle. Try the Tom Yum Soup or the famous Drunken Mushroom Noodles, stir-fried with three kinds of mushrooms, garlic and chile. Roger Mooking says the noodles "start off smooth and then hit you with the heat."

This Nashville brewhouse serves hot, filling and hearty fare in large sizes perfect for feeding a hungry crowd, with a bountiful beer selection to go alongside. Roger and Aaron sampled the Diablo Pasta, linguine with sizzling chipotle sauce, jalapeno-cured bacon-wrapped shrimp and habanero chile.

At The Wing Dome, also known as the "home of the burn," you'll find wings that are straight "from the face of the sun." Roger and Aaron tried the 7-Alarm Challenge, attempting to devour seven of the sweat-inducing wings in just seven minutes. Not feeling spicy? Try Thai Sweet Chile or Triple Garlic.