Pear Puff Pastry Tart with Caramelized Onion

Name: Pear Puff Pastry Tart with Caramelized Onion
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Cuisine: American
Ingredients: 1 sheet frozen puff pastry (thawed according to package directions); all-purpose flour (for dusting); 1 large egg, beaten with 1 tbsp water; 2 small pears (thinly sliced); ½ cup caramelized onions ((see note)); 1/2 cup walnut halves and pieces; ¼ cup Gorgonzola or other blue cheese; 3 tbsp honey (for drizzling)