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Today I’m excited to share one of the simplest recipes in my collection — an easy, cheesy zucchini casserole made with just 2 basic ingredients. All you need is fresh shredded zucchini and your favorite cheese to create a light, healthy, and incredibly satisfying dish.

What I love most is that this casserole is not only quick and budget-friendly, but also Weight Watchers friendly. Each serving is low in calories and WW Points, so you can enjoy cheesy comfort food without getting off track.

The zucchini bakes up tender, the cheese melts into gooey perfection, and the end result works just as well as a side dish as it does a vegetarian main. I sometimes add garlic, a pinch of salt and pepper, or even experiment with other vegetables for fun variations. However you make it, this casserole has become one of my go-to WW zucchini recipes.

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Cheesy zucchini gratin casserole with three grape tomatoes on white plate.
Cheesy Zucchini Gratin Casserole

Why You’ll Love This Easy Zucchini Recipe

  • Just 2 ingredients – Fresh zucchini and cheese are all you need for a simple, delicious dish.
  • Weight Watchers friendly – Low in calories and WW Points, this casserole is an easy way to enjoy comfort food while staying on track.
  • Versatile – Works as a light vegetarian main dish or as a side with chicken, fish, or pork.
  • Flexible with ingredients – Add garlic, swap in different cheeses, or even try other vegetables to keep things interesting.
  • Perfect for zucchini season – When gardens and markets are overflowing, this recipe is an easy way to use them up without fuss.
5 summer squash of varying sizes and colores on wooden fence

Ingredients & Substitutions

  • Zucchini – Shredded fresh zucchini is the base of this casserole. Green, yellow, or striped varieties all work, and you can mix them for color.
  • Cheese – Use any good melting cheese such as cheddar, mozzarella, Swiss, provolone, or Monterey Jack. For fewer WW Points, choose a reduced-fat blend. Vegan cheese alternatives also work if you prefer dairy-free.
  • Garlic (optional) – Adds extra flavor without adding WW Points.
  • Salt and pepper – Simple seasoning to enhance the natural flavors.
  • Variation idea – Try swapping in shredded cauliflower or carrots for part of the zucchini to change things up while keeping it light and WW friendly.

Calories & WW Points?

According to my calculations, each serving has:

  • Calories: 148 calories.
  • Points: To see your WW Points for this recipe, track it in the WW App!
    (You must be logged into WW on a smartphone or tablet.)
  • Old Points: 4 PointsPlus

The points may vary depending on the kind of cheese you use. Remember to adjust your points in the WW Recipe Builder when making any ingredient substitutions.

How to Make this Easy Healthy 2-Ingredient Shredded Cheesy Zucchini Casserole

Step 1: Prep the oven, pan and ingredients

Preheat your oven to 350°F. Lightly spray an 8-inch baking or gratin dish with nonstick spray. You can use a food processor (affiliate link) to shred your zucchini or an old fashioned box grater (affiliate link).

Step 2: Combine ingredients

In a large mixing bowl (affiliate link), add the shredded zucchini, cheese, optional garlic, salt, and pepper. Stir well until everything is evenly combined.

Stirring together shredded zucchini and cheese in mixing bowl.
Mixing together shredded zucchini, cheese and optional chopped garlic

Step 3: Transfer to baking dish

Spoon the mixture into the prepared pan, spreading it evenly.

Zucchini gratin in baking dish on wood tree stump.
Ready to bake zucchini gratin

Step 4: Bake

Place the dish in the oven and bake for about 30 minutes, or until the casserole is golden and bubbling.

Step 5: Serve

Remove from the oven and let cool slightly. Serve hot or at room temperature.

Baked cheesy zucchini gratin in baking dish sitting on wooden tree stump.
Oven-baked cheesy zucchini gratin casserole

Recipe Notes & Serving Suggestions

Zucchini tips – Green, yellow, or striped zucchini all work. Use whichever you have on hand.

Cheese options – Any good melting cheese (cheddar, mozzarella, Swiss, provolone, Monterey Jack, etc.) will be delicious. To save WW Points, go with reduced-fat cheese.

Texture – Be sure to squeeze out excess liquid from the shredded zucchini if it seems watery; this helps keep the casserole firm.

Serving ideas – This casserole pairs well with chicken, fish, pork, or beef. It can also stand alone as a vegetarian main dish with a side salad and a slice of crusty bread.

Leftovers – Store covered in the fridge for up to 3 days. Enjoy cold, warmed in the microwave (affiliate link), or even crumbled over a salad for extra flavor.

Oven-baked zucchini gratin on white plate with whole grape tomatoes.
Baked cheesy zucchini gratin

If you’ve made this Low Carb Zucchini Gratin, please give the recipe a star rating below and leave a comment letting me know how you liked it. And stay in touch on Pinterest, Facebook, Instagram and Twitter for the latest updates.

Baked cheesy zucchini gratin in baking dish sitting on wooden tree stump.
4.71 from 51 votes

2-Ingredient Shredded Cheesy Zucchini Casserole

This casserole is delicious hot, or at room temperature, which makes it a great summertime veggie dish.
Prep: 5 minutes
Cook: 30 minutes
Total: 35 minutes
Servings: 3
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Ingredients 

  • 4 medium zucchini, shredded (about 3 cups)
  • 1 cup shredded cheese (I used a reduced fat Mexican blend)
  • 2 garlic cloves, minced (optional)
  • Salt and pepper, to taste

Instructions 

  • Heat the oven to 350F degrees. Spray an 8-inch baking or gratin pan.
  • Place all ingredients in a large bowl and mix together thoroughly.
  • Spoon into pan and bake for 30 minutes.
  • Serve hot or at room temperature.

Notes

Serving size: 1/3 recipe
WW Points: Check the WW Points for this recipe and track it in the WW app.
(Must be logged into WW on a smartphone or tablet.)
4 PointsPlus (Old plan)

Recipe Notes & Serving Suggestions

  • Zucchini tips – Green, yellow, or striped zucchini all work. Use whichever you have on hand.
  • Cheese options – Any good melting cheese (cheddar, mozzarella, Swiss, provolone, Monterey Jack, etc.) will be delicious. To save WW Points, go with reduced-fat cheese.
  • Shredding options – Either a box grater (affiliate link) or food processor (affiliate link) will work.
  • Texture – Be sure to squeeze out excess liquid from the shredded zucchini if it seems watery; this helps keep the casserole firm.
  • Serving ideas – This casserole pairs well with chicken, fish, pork, or beef. It can also stand alone as a vegetarian main dish with a side salad and a slice of crusty bread.
  • Leftovers – Store covered in the fridge for up to 3 days. Enjoy cold, warmed in the microwave (affiliate link), or even crumbled over a salad for extra flavor.

Nutrition

Serving: 1/3 casserole, Calories: 148kcal, Carbohydrates: 10g, Protein: 14g, Fat: 4g, Saturated Fat: 2g, Polyunsaturated Fat: 0.3g, Monounsaturated Fat: 1g, Cholesterol: 8mg, Sodium: 252mg, Potassium: 715mg, Fiber: 3g, Sugar: 7g, Vitamin A: 601IU, Vitamin C: 47mg, Calcium: 202mg, Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Vegetable / Side Dish
Cuisine: American
Tried this recipe?Mention @simplenourishedliving or tag #simplenourishedliving!

More WW-Friendly Zucchini Recipes

If you enjoy this easy cheesy zucchini casserole, you might like exploring a few more light and healthy zucchini dishes.

Want More Simple WW-Friendly Recipes?

If you like light, veggie-packed dishes like this zucchini casserole, you’ll find even more easy ideas in my Ultimate eCookbook Bundle. It’s filled with Weight Watchers friendly slow cooker recipes, casseroles, and family favorites made lighter.

About Hallie Harron

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4.71 from 51 votes (47 ratings without comment)

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11 Comments

  1. 5 stars
    One of my favorite ways to make zucchini. Easy & delicious — Thank you for all your wonderful recipes.

  2. 5 stars
    Made as side dish for the family, they loved it. I sprayed 9 x 11 glass dish with olive oil, and baked at 350 for 30 mins. Had a crunchy bottom, which was the goal.

  3. 5 stars
    Made this with my grandson and we loved it. I am going to make a double batch next time, so I have some leftovers for lunch the next day.

    1. Hi Jane, I didn’t drain it, but you can if you like. Id just give it a squeeze and wrap in paper towels to absorb any excess moisture. Hope this helps. ~Martha

    1. Hi Deb, I’ve not tried with frozen shredded zucchini. If I were to use it I would definitely drain it first. ~Martha