Even finicky eaters rush to the kitchen when grilled cheese sandwiches are on the menu. With a few ingredient upgrades, this lunch or dinner mainstay tastes even more delicious.

Its impressive appearance belies how easy this dish is to make, whether for a weeknight meal or guests. Small potatoes roasted in olive oil and our citrus salad make appetizing accompaniments, as does piquillo pepper sauce.

Back in the 1950s, the Barcelona nightclub La Sala Bikini started serving croque monsieur, the French grilled ham and cheese sandwich. Because the Spanish dictator Francisco Franco didn’t allow French (or English) words in the lexicon, it was simply called the home sandwich, but patrons soon referred to it as the Bikini. Delicious when made with quintessential Spanish foods, it can also be personalized with other ingredients you have on hand.

Highly spiced lamb merguez is traditionally a dish from North Africa, just across the Mediterranean from Spain. To add a Spanish influence, orange zest is included with the other aromatics, and the finished meatballs are drizzled with a citrus sauce.

Is it just us, or does food served on skewers taste better? We have made these kebabs with chicken thighs (our favorite), breasts, and tenders. You could even use boneless pork if that’s what you have on hand. Serve with crusty bread and sliced tomatoes or a green salad dressed with extra virgin olive oil, vinegar, and salt and pepper.

One of the most popular shellfish (mariscos) and fish (pescado) dishes in Spain, zarzuela is actually the name of an eclectic type of musical theater—think variety show. The dish, believed to have originated in Barcelona more than a century ago, bears the name because it’s best made with a variety of seafood. Cook up your own adventure by choosing shellfish and fish that you like and can find fresh or frozen at your local stores—use the following ingredients as a guide. Picada is used as a traditional flavor enhancer for zarzuela, but the dish will still taste delicious on its own. Serve with crusty bread to soak up every drop.

Think of this as a kind of Spanish potato pancake—comfort food at its best, with potatoes, cabbage (or kale), and bacon. Traditionally, it’s served as a frying pan–sized cake. But individual servings are easier to manage and look beautiful on a plate.

Frittatas are infinitely customizable—you can add to them nearly any cooked meat or vegetable you would like—and don’t require any scary maneuvers (like flipping the entire dish multiple times as it cooks, as you do with a tortilla Espagnole). Feel free to substitute a couple of roasted, peeled, and seeded red peppers for the piquillos if you don’t have the latter on hand.

While delicious and beloved, the classic sandwich is somewhat of a greasy hot mess. With just a few tweaks, including a leaner cut of meat than usual and polyphenol-rich olive oil, it becomes a satisfying meal with a better health profile. If you prefer, swap mozzarella for the provolone.

This dish uses two of the more delicate members of the allium family—leeks and chives—to add oniony taste without overpowering the shrimp. If you want more zest, be generous with the red pepper flakes.

This simple prep creates a delicious sauce for the fish, and it cooks in a single pan. If you can’t find wild-caught cod, you can substitute another white-fleshed fish, fresh or frozen, preferably sustainably caught. There are now wonderful online fishmongers that ship expertly frozen fish to your door.