Recipe: Garlic and Onion Zucchini Gratin


This dish is a delicious adaptation of Homes Chef’s Zucchini and Sun Dried Tomato Au Gratin.  I did not care for the sundried tomatoes, so I adapted the recipe.  I am certain you will enjoy it.  

Garlic and Onion Zucchini Gratin
Serves 4
This a delicious side dish. I really enjoy the onions with the zucchini.
Prep Time
15 min
Cook Time
30 min
Total Time
45 min
Prep Time
15 min
Cook Time
30 min
Total Time
45 min
  1. 4-5 small zucchini
  2. 2-2.5 ounces of crispy fried onions, crushed
  3. 1/2 medium onion, diced into 1/2 inch pieces
  4. 2 cloves of garlic, minced
  5. 2-2.5 ounces of grated Parmesan cheese
  6. 2-2.5 ounces shredded Parmesan cheese
  7. 4-5 fluid ounces of heavy whipping cream
  8. salt
  9. pepper
  10. olive oil
Add ingredients to shopping list
If you don’t have Buy Me a Pie! app installed you’ll see the list with ingredients right after downloading it
  1. Preheat oven to 425 degrees.
  2. Sliced zucchini diagonally to make oval slices that are approximately 1/4-1/2 inch thick.
  3. In a large nonstick skillet, add 2 teaspoons of olive oil. Fry the zucchini on medium heat until brown on both sides but still firm and crunchy. You will have to fry approximately 8 to 10 pieces at a time. Once the zucchini is browned, place on a baking sheet covered with paper towels to absorb the oil.
  4. In the same skillet, add 1/2 tsp olive oil and cook the mined garlic until fragrant or about 30 seconds. Add the onions and 1/4 tsp of salt and pepper. Cook on medium heat until caramelized or about 3-4 minutes.
  5. In small baking dishes (I used 2 cup pyrex bowls), add alternating layers of zucchini, onion/garlic mixture, and grated parmesan cheese until you run out of zucchini. I did three layers and ended with the zucchini. On top add 0.5 ounce of shredded Parmesan cheese to each bowl. Top with 2 ounces of heavy cream per bowl.
  6. Bake for 12-15 minutes of 425. I baked mine on a baking sheet for ease of removal from the oven. The bowls are hard to grasp.
  7. When ready to serve, add 1/2 ounce of fried onion crumbs on top.
  1. It is not light but it is delicious.
297 cal
25 g
12 g
4 g
Adapted from Blue Apron's Zucchini and Sun-dried Tomato Gratin
Adapted from Blue Apron's Zucchini and Sun-dried Tomato Gratin
Walking Off Pounds

Garlic Onion Zucchini Gratin

Garlic Onion Zucchini Gratin

Print Friendly, PDF & Email

About the Author

I am a family physician who has served in the US Army. In 2016, I found myself overweight, out of shape, and unhealthy, so I made a change to improve my health. This blog is the chronology of my path to better health and what I have learned along the way.

Be the first to comment on "Recipe: Garlic and Onion Zucchini Gratin"

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: