Kitchen Commons Community Recipes

Back to Recipes

Onion and Potato Casserole

6 servings
Adapted from recipe on


  • 6 medium russet potatoes, cut into 1/4 inch slices or thinner (about 4 cups)
  • 3 tbsp butter or 3 tbsp vegetable oil
  • 6 medium yellow onions, thinly sliced (about 5 cups)
  • 6 cloves garlic, minced
  • 1 1/2 tbsp chopped fresh thyme or 1 1/2 tsp dried thyme
  • salt and pepper to taste
  • 3/4 cup milk, broth, or milk substitute
  • Paprika, to taste (to decorate)


  1. Preheat oven to 400 degrees F.
  2. Spray a 2 quart baking dish with oil.
  3. Slice onions and chop garlic.
  4. Put 2 tbsp of oil in a skillet and over medium-low heat cook the onions until the onions begin to brown (Apprx 15 minutes). Add garlic after about 10 minutes.
  5. Scrub the potatoes, then thinly slice them with a knife or mandolin slicer.
  6. Spread a thin layer of potatoes in the baking dish, sprinkle with thyme, salt & pepper.
  7. Top with a layer of onions.
  8. Repeat layers twice ending with a layer of onions.
  9. Pour in milk and sprinkle with paprika
  10. Bake until lightly browned (about 30 minutes).
  11. Serve immediately.

Follow us on Social Media!

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.