Slow Cooker Squash Gratin Recipe | Vegetarian Times Skip to main content

Slow Cooker Squash Gratin

Slow cookers offer an energy-saving way to cook gratins, which usually need an hour of oven time. Double the recipe if your cooker’s capacity exceeds 4 quarts.



Ingredient Line: 
2 Tbs. unsalted butter
Ingredient Line: 
3 Tbs. all-purpose flour
Ingredient Line: 
1¼ tsp. salt, divided
Ingredient Line: 
1 cup whole milk
Ingredient Line: 
1 chipotle chile in adobo sauce, drained and minced (1 Tbs.)
Ingredient Line: 
1 cup shredded Gouda cheese, divided (3½ oz.)
Ingredient Line: 
2 small acorn squash, peeled, quartered, and sliced ¾-inch thick
Ingredient Line: 
1 medium leek, halved, light green and white parts cut into 1-inch pieces (1 cup)
Ingredient Line: 
1½ Tbs. chopped fresh sage
Ingredient Line: 
3 cloves garlic, minced (1 Tbs.)
Ingredient Line: 
3 Tbs. Italian-seasoned panko breadcrumbs


1. Spray inside of 3- to 4-qt. slow cooker with cooking spray. Add butter, cover, and heat on high 10 minutes, or until butter is melted.

2. Whisk flour and 1/4 tsp. salt into butter 1 minute, or until smooth. Gradually add 1/4 cup milk, whisking constantly 2 minutes, or until completely blended. Whisk in remaining 3/4 cup milk and minced chipotle. Stir in 3/4 cup Gouda. Cover, and cook 15 minutes, until cheese is almost melted and slow cooker is hot.

3. Meanwhile, combine squash, leek, sage, garlic, and remaining 1 tsp. salt in large bowl.

4. Uncover slow cooker, and whisk sauce 2 minutes, or until smooth. Stir squash mixture into sauce. Place single layer of paper towel across top of slow cooker, extending over edges, and securing with lid. Adjust slow cooker setting to low, and cook 3 to 4 hours, or until squash is tender. Turn off slow cooker, and remove lid and paper towel. Sprinkle remaining 1/4 cup Gouda, and then breadcrumbs, over gratin; spray with cooking spray. Cook, uncovered, 5 minutes before serving.

Nutrition Information: 

7 g
Total Fat: 
10 g
Saturated Fat: 
6 g
21 g
33 mg
682 mg
3 g
3 g
Serves 6

Comments on this Recipe

This recipe is amazing good!I highly recommend it and it makes great leftovers--always a plus.To save time, make the cheese white sauce on the stove top then follow the recipe from step 3.

I am with you, I much prefer butternut squash over acorn. I don't think I have been that type of sauce teamed with squash crossing my radar---well really my computer---screen before. It should prove interesting. It certainly looks delicious.

Any idea how many cups of squash? I want to sub butternut for the acorn. This recipe looks delicious!