Turn up your sammie game with a satisfying Smashroom Sandwich destined for summer greatness. Here mushrooms get weighed down while they sizzle, resulting in crisp edges, tender middles, and flat expanses ideal for shingling between buns. You can eat this face-size monstrosity right away, but it’s just as good wrapped up and enjoyed in transit to the next adventure (hopefully, the beach). —Sarah Jampel
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What you’ll need
Stainless Steel Mixing Bowls, Set of 6
$29 At Amazon
Cast Iron Skillet
$30 At Amazon
Small Skillet
$25 $23 At Amazon
Small Offset Spatula
$5 At Amazon
Recipe information
Yield
2 servings
Ingredients
Preparation
Step 1
Place pesto in a large bowl. If using portobellos, remove stems and gills. Tear mushrooms into 3”–4” pieces. Heat 1 Tbsp. oil in a medium heavy skillet over medium-high. Arrange half of mushrooms in a single layer in skillet and cook until they start to sizzle, then wrap the bottom of a second heavy skillet that is small enough to nestle into the first with foil and use it to press down on mushrooms evenly (apply pressure with your body weight to really smash the mushrooms into the hot skillet). Cook, pressing down and rotating pan as needed for even browning, until mushrooms shrink significantly and are deeply browned underneath, about 3 minutes. Remove top skillet; season mushrooms with salt. Turn mushrooms over, add 1 tsp. oil to pan, and re-cover with foil-lined skillet. Cook, pressing, until second sides of mushrooms are well-browned, about 3 minutes. Transfer mushrooms to bowl with pesto. Repeat process with remaining mushrooms and 1 Tbsp. plus 1 tsp. oil. Toss mushrooms in pesto to coat.
Step 2
Rub cut sides of baguette with garlic; discard garlic. Arrange mushrooms on bottom half of bread, then layer mozzarella on top. Season lightly with salt and top with cherry peppers and basil. Close and cut in half to make 2 sandwiches.
Do ahead: Sandwiches can be made 4 hours ahead. Store tightly wrapped at room temperature.
