---
title: One-Pan Ravioli Gratin
servings: 4
source:
  name: HelloFresh
  url: https://www.hellofresh.com/recipes/mushroom-ravioli-gratin-57c9af39f31cf1b0578b4568
prep time: 10 minutes
cook time: 25 minutes
time required: 35 minutes
difficulty: easy
allergens:
  - Wheat
  - Eggs
  - Milk
tags:
  - Veggie
rating: 4.5
rating_count: 4400
source_chef: Recipe Development Team
review_highlights: []
nutrition:
  calories: 526
  protein: 27
  fat: 24
  saturated fat: 11
  carbohydrates: 56
  sugar: 6
  fiber: 4
  cholesterol: 88
  sodium: 1090
image: "https://images.recipes.furrysalamander.com/Pasta%20Recipes/one-pan-ravioli-gratin.avif"
---
Wash and dry all produce. Preheat the broiler to high or oven to 500 degrees. Thinly slice @button mushrooms{8%oz}. Halve, peel, and thinly slice half the @yellow onion{1%unit} (save the rest for another use). Strip the @thyme{½%oz} leaves off the stems; discard the stems.

Heat a drizzle of @olive oil{4%tsp} in a #medium ovenproof pan{} over medium heat. (HINT: If you don't have one, transfer to a baking dish before step 5.) Add the mushrooms, thyme, and onions. Cook, tossing, ~{5-6%minutes}, until softened and slightly golden. Season with @salt{} and @pepper{}. Add the @veggie stock concentrate{2%unit} and 1½ cups water to the pan. Bring to a simmer.

Add the @mushroom ravioli{18%ounce} to the pan. Cover and cook ~{4-5%minutes}. Uncover and cook, spooning the broth over the ravioli, ~{5-6%minutes}, until ravioli are tender and broth is thickened. If the liquid evaporates before the ravioli are tender, add a splash of water. TIP: To keep the ravioli from sticking to the bottom, gently shake the pan occasionally.

Meanwhile, combine the @panko breadcrumbs{½%cup}, @Parmesan cheese{½%cup}, a drizzle of olive oil, and a pinch of salt and pepper in a #small bowl{}.

Carefully fold the @sour cream{8%tbsp} into the ravioli. Season with salt and pepper. You should have a thick, creamy sauce. If too thick, add a splash of water.

Sprinkle the pan with the Parmesan breadcrumbs. Place under the broiler until golden brown, ~{1-2%minutes}. Enjoy!