Test Kitchen editor Rebecca Firkser has developed a high-protein, plant-based double-decker sandwich recipe designed to elevate simple home cooking into an easy, nourishing daily ritual.

Rethinking the Vegetarian Sandwich

While basic options like peanut butter and jelly or standard turkey and cheese require little guidance, crafting an exceptional vegetarian sandwich demands technique and precision. Meatless builds vary widely in style—from California-inspired layers featuring avocado, sprouts, and chèvre, to warm eggplant paninis, or delicate cucumber and cream cheese combinations with the crusts removed. Regardless of the chosen vegetables or plant-based proteins, executing a well-balanced meatless sandwich requires precise measurements and intentional preparation, transforming lunch into a rewarding culinary practice.

A Double-Decker Built for Flavor and Texture

This recipe draws direct inspiration from two iconic menu items: the classic double-decker club sandwich and the New Jersey sloppy joe. To ensure a hearty structure, the build retains three slices of bread while replacing traditional cold cuts and bacon with thinly sliced, crunchy vegetables tossed in a tangy vinegar brine, paired with sharp cheddar cheese.

To bind the components together, apply a spread of giardiniera-infused mayonnaise across the bread alongside a thick layer of hummus. Inserting long toothpicks through the assembled stack secures the layers before slicing.

Pro Technique: Mandoline Slicing for Deli-Style Layers

Replicating the paper-thin texture of deli meat relies heavily on proper cutting tools. Using a mandoline achieves razor-thin vegetable slices that stack cleanly and enhance the sandwich’s overall mouthfeel. Mindful hand placement and steady safety practices ensure smooth, efficient prep work.