Lost and Found Casserole–an easy slow cooker or stovetop recipe with chicken, zucchini, cheese and crispy fried onions.

Lost and Found Casserole
It’s zucchini season! My mother-in-law sent me home with several zucchinis from her garden and I put a couple of them to good use in this tasty dish. This is a simple recipe you can whip up in your slow cooker or on the stovetop in just a few minutes. The chicken and zucchini are well seasoned and then the melty cheese just brings it all together. Enjoy!
Ingredients/Substitution Ideas
- Olive oil–or canola oil
- Onion–yellow or white
- Boneless skinless chicken thighs–or chicken breasts
- Zucchini–about the size of a banana. You don’t want the overgrown baseball bat zucchinis.
- Dried basil
- Kosher salt
- Garlic powder
- Black pepper
- Sharp cheddar cheese
- Crispy fried onions–like the kind you put on green bean casserole
Steps
Heat a pan over medium high heat. Add in the oil and swirl around. Add in the onion and saute for 4 minutes. Transfer to the slow cooker.

Stir in the chicken, zucchini, basil, salt, garlic powder and pepper.

Cover and cook on low for 90 minutes to 2 hours.

Stir in the cheese and fried onions.

Serve and enjoy!

Notes/Tips
- Serve with a side of garlic bread, a dinner roll or some cornbread.
- I used my 6 quart Ninja Slow Cooker. I like this slow cooker because it has a stovetop function on it so you can saute inside the slow cooker instead of getting out a pan on the stove.
- Store leftovers in an airtight container* in the refrigerator for up to 4 days.
- Other recipes you can make with chicken thighs are Going Hiking Casserole and Snuggled Up Chicken.
Did you know you can filter the recipes on my website to search by meat type, IP or Crockpot, low carb, gluten free, etc.? Use the filter to find exactly what you are looking for.


Lost and Found Casserole
- Prep Time: 20 minutes
- Total Time: 20 minutes
- Yield: 3–4 servings 1x
Description
An easy slow cooker or stovetop recipe with chicken, zucchini, cheese and crispy fried onions.
Ingredients
- 1 Tbsp olive oil
- 1/2 cup finely diced onion
- 3 boneless skinless chicken thighs, cut into 1 inch pieces
- 2 medium zucchini, quartered and cut into 1 inch pieces
- 1 tsp dried basil
- 1 tsp kosher salt
- 1 tsp garlic powder
- 1/2 tsp black pepper
- 1 ounces of sharp cheddar cheese, shredded
- 1/2 cup of crispy fried onions
Instructions
Slow Cooker Instructions:
- Heat a pan over medium high heat. Add in the oil and swirl around. Add in the onion and saute for 4 minutes. Transfer to the slow cooker.
- Stir in the chicken, zucchini, basil, salt, garlic powder and pepper.
- Cover and cook on low for 2 hours.
- Stir in the cheese and fried onions. Serve and enjoy!
Stovetop Instructions:
- Heat a pan over medium high heat. Add in the oil and swirl around. Add in the onion and chicken and saute for 5 minutes.
- Stir in the zucchini, basil, salt, garlic powder and pepper. Cook on medium heat until zucchini is tender.
- Stir in the cheese and fried onions. Serve and enjoy!
- Category: Chicken
- Method: Slow Cooker or Stovetop

More recipes with zucchini…
Zucchini Lasagna Roll-Ups (Slow Cooker or Oven)
Want to eat a healthier (and delicious) version of lasagna? Try this zucchini noodle lasagna roll-ups recipe in your slow cooker (or your oven). You’ll be surprised at how you won’t even miss the noodles.
Instant Pot Zucchini Linguine
Al dente pasta is stirred together with fresh zucchini, tender chicken bites, yogurt, garlic and cheddar. A simple summer recipe that is so delicious and can be made quickly in your electric pressure cooker.
*Karen Petersen is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com.



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