
This savory ground turkey zucchini casserole brings together hearty protein packed turkey, tender zucchini and a cheesy topping into a weeknight meal that has everyone coming back for seconds My family never loved zucchini until I baked it this way and now it is high on our regular dinner rotation
The first time I made this casserole I was amazed that my picky eaters asked for seconds The blend of melty aged cheddar and juicy tomatoes makes it irresistible
Ingredients
- Olive oil: Adds heart healthy richness and helps brown the turkey Choose extra virgin for the best flavor
- Ground turkey: Lean and high in protein Be sure to use fresh turkey for juiciest results
- Chopped onion: Gives sweetness and depth Look for onions that feel firm and heavy
- Minced garlic: Brightens the whole dish Use fresh cloves for the boldest taste
- Zucchini: It soaks up the savory flavors Smaller zucchini tend to be less watery and more tender
- Cooked groats or brown rice or quinoa: Adds wholesome bulk and soaks up the tomato juices Choose whole grain options for more fiber
- Canned diced tomatoes: Provide tang and moisture Go for a no salt added can if watching sodium
- Oregano: Brings Mediterranean warmth Dried oregano is potent so a little goes a long way
- Smoked paprika: Adds gentle smokiness Opt for Spanish smoked paprika for robust flavor
- Fresh basil: Gives a pop of herbal freshness Chop just before using to avoid bruising
- Kerrygold aged cheddar: The melty sharp topping Choose a high quality aged cheddar for bold flavor
Step-by-Step Instructions
- Preheat the Oven:
- Set your oven to 350 degrees Fahrenheit 175 degrees Celsius so it is hot and ready when it is time to bake
- Brown the Turkey:
- Place a large skillet over medium high heat and pour in olive oil When the oil shimmers add ground turkey Break up the turkey with a spoon and cook for about five minutes stirring often until it is mostly browned with just a little pink left
- Sauté the Vegetables:
- Add the chopped onion and minced garlic directly to the browned turkey Continue to cook for two minutes stirring frequently until onions begin to look translucent and the garlic releases its aroma Stir in the diced zucchini and keep cooking for three to four more minutes until the zucchini just starts to soften at the edges
- Combine Everything:
- To the skillet add cooked groats diced tomatoes oregano smoked paprika fresh basil and half your shredded cheddar cheese Mix thoroughly so everything is evenly coated and the groats begin to take on the tomato flavor
- Assemble and Top:
- Lightly grease a large 9 by 13 inch baking dish with more olive oil or cooking spray Pour the turkey and vegetable mixture into the prepared dish and spread it out into an even layer Sprinkle the rest of the cheddar cheese evenly over the top
- Bake the Casserole:
- Transfer the dish to the oven and bake uncovered for about 20 to 25 minutes or until the top is bubbling and golden brown Let cool for five minutes before serving so slices hold together

The smoked paprika in this dish made all the difference for me After I gave the recipe a twist with smoked paprika instead of regular I had new appreciation for its depth My kids now ask what makes it taste so good every single time
Storage Tips
Let any leftovers cool to room temperature before covering and refrigerating for up to four days Slice squares for easy microwave reheating For longer storage wrap well and freeze up to three months then thaw fully in the fridge before warming in the oven
Ingredient Substitutions
This recipe is so accommodating If you do not have ground turkey try lean ground chicken or even beef For groats you can use cooked quinoa brown rice or even barley to suit your taste If you skip cheddar use any firm melting cheese like Monterey Jack or Swiss
Serving Suggestions
Serve this casserole hot with a crisp green salad some crusty bread or even a dollop of Greek yogurt on top I sometimes spoon leftovers into tortillas for a quick lunch wrap the next day It also pairs beautifully with grilled vegetables or a simple cucumber tomato salad

Cultural and Historical Context
Casseroles became popular in American homes for their convenience and affordability they stretch ingredients while delivering comfort My grandmother made something similar with whatever grains and cheese she had on hand and I love keeping that tradition alive with modern flavors
Recipe FAQs
- → Can I use a different type of ground meat?
Yes, you can substitute ground turkey with chicken, beef, or even plant-based crumbles for a different flavor.
- → What grains work well besides groats?
Brown rice or quinoa are excellent alternatives, offering similar texture and absorbing seasonings well.
- → How can I add more vegetables?
Bell peppers, spinach, or mushrooms can be included for extra color and nutrition without altering the core flavor.
- → Can the casserole be made ahead?
Definitely. You can assemble, cover, and refrigerate or freeze the dish, baking it when ready to serve.
- → Is Kerrygold aged cheddar essential?
Any sharp cheddar or your favorite melty cheese will work, but Kerrygold adds a rich, distinctive taste.
- → How do I ensure the casserole isn’t soggy?
Sauté the zucchini until it begins to soften but isn’t mushy. Draining excess liquid before baking also helps.