Name: Green Bean Casserole Bites
Prep time: 20 min
Total time: 1 h 30 min
Yield: 48
Ingredients: Kosher salt; 8 oz. green beans, trimmed; 4 oz. cremini mushrooms, rinsed; 5 tbsp. unsalted butter, divided; 1 yellow onion, thinly sliced; 3 cloves garlic, finely chopped; 1/4 c. (30 g.) all-purpose flour, plus more for dusting; 1 1/2 c. whole milk; Freshly ground black pepper; Cooking spray; 2 (8-oz.) cans crescent roll dough; 1 c. store-bought or homemade crispy fried onions

Step 1Fill a medium pot with water; generously season with salt and bring to a boil. Fill a medium bowl with ice water. Cook beans in boiling water, stirring occasionally, until bright green, 2 to 3 minutes. Immediately transfer to ice bath. Let cool slightly.

Step 2Transfer beans to a food processor. Pulse until beans are coarsely chopped, about 5 pulses (there will be parts that are more finely chopped than others). Transfer to a large bowl.

Step 3In food processor, process mushrooms until very finely chopped (do not overprocess). Set aside in food processor.

Step 4In a medium skillet over medium heat, melt 2 Tbsp. butter. Add onions; season with salt and cook, stirring occasionally, until wilted and slightly caramelized, about 15 minutes. Add garlic and cook, stirring, until fragrant, about 1 minute more. Add mushrooms and cook, stirring occasionally, until browned and very softened, about 10 minutes. Transfer to bowl with green beans.

Step 5In same skillet over medium heat, cook flour and remaining 3 Tbsp. butter, whisking constantly, until toasty smelling, about 1 minute. Add milk and vigorously whisk until boiling and thickened, about 5 minutes; season with salt and pepper. Pour sauce into bowl with green beans. Cover with plastic wrap and refrigerate until cooled, about 20 minutes.

Step 6Meanwhile, arrange a rack in center of oven; preheat to 375°. Grease 2 mini 24-cup muffin tins with cooking spray. On a lightly floured surface, unroll one can of crescent roll dough. Pinch edges together to form a rectangle. Roll to a 15" x 12" rectangle, then cut into 24 pieces. Arrange in prepared tin. Repeat with remaining crescent roll dough.

Step 7Bake dough until golden brown and puffed, about 5 minutes. Scoop 1 Tbsp. green bean mixture into each cup. Top with fried onions.

Step 8Bake casserole bites until filling is warmed through and onions are slightly darkened and fragrant, about 8 minutes more.