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Healthy Chicken Zucchini Casserole

Chicken, zucchini, tomatoes, and a little parmesan, with no canned soup and no pasta.

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Healthy Chicken Zucchini Casserole

Recipe by Iren Pavlenko
0.0 from 0 votes
Course: Main CourseDifficulty: Easy
Servings

6

servings
Prep time

15

minutes
Cooking time

3

hours 

30

minutes

Chicken, zucchini, tomatoes, and a little parmesan, with no canned soup and no pasta.

Ingredients

  • 1½ lb boneless skinless chicken breasts, cut into 1-inch pieces

  • 3 medium zucchini, cut in half moons

  • 1 can (14.5 oz) diced tomatoes, drained

  • 1 onion, sliced

  • 3 cloves garlic, minced

  • 1 tsp Italian seasoning

  • salt and pepper

  • ½ cup shredded mozzarella

  • ¼ cup grated parmesan

  • Salt and black pepper to taste

  • Fresh basil leaves to finish

  • Cooked quinoa or brown rice to serve

Directions

  • Gather and measure everything before you start, so nothing waits on the counter.
  • Layer the onion and chicken on the bottom of the greased insert and season.
  • Spread the drained tomatoes and garlic over the chicken.
  • Cook 3 hours on LOW.
  • Add the zucchini on top and cook 30 minutes more.
  • Sprinkle the cheeses over, leave the lid off for 10 minutes, and serve.
  • Check that the zucchini is tender but not collapsing and the chicken reads 165°F.
  • Let the casserole rest 10 minutes with the lid off so the layers set.
  • Scoop with a wide spoon straight down to the bottom, so each serving has every layer.
  • Cool leftovers within 2 hours and refrigerate in shallow containers for up to 4 days.

Notes

    Zucchini is mostly water. Added at the start, it floods the pot. It goes in for the last half hour.

Why the zucchini waits

Zucchini is mostly water. Added at the start it would flood the pot. Half an hour at the end leaves the slices tender but not collapsed.

Draining the tomatoes does the same job and keeps the casserole from turning soupy.

Healthy Chicken Zucchini Casserole: swaps

Summer squash works in place of zucchini. Cheddar can replace mozzarella. Do not salt the zucchini early, because it draws out more liquid.

Cutting the chicken into 1-inch pieces keeps it from drying out.

Serving and storage

Quinoa or brown rice makes this a full dinner. Fresh basil on top adds a bright finish. Store leftovers in shallow containers, and reheat in a covered dish with a spoonful of water.

One mistake to avoid

Adding the cheese too early. It melts into the juices and turns greasy instead of forming a top. Sprinkle it over at the end, leave the lid off for ten minutes, and let the casserole rest so the layers set before you scoop.

Healthy Chicken Zucchini Casserole at a glance

  • Prep time: 15 minutes
  • Cooking time: 3 hours 30 minutes
  • Servings: 6 servings
  • Ingredients: 12, led by boneless skinless chicken breasts, zucchini, (14.5 oz) diced tomatoes, onion

Tips for Healthy Chicken Zucchini Casserole

Zucchini is mostly water. Added at the start, it floods the pot. It goes in for the last half hour.

Healthy Chicken Zucchini Casserole FAQ

How long does Healthy Chicken Zucchini Casserole take?

Healthy Chicken Zucchini Casserole takes 3 hours 30 minutes of cooking after 15 minutes of prep.

How many people does Healthy Chicken Zucchini Casserole serve?

This recipe makes 6 servings.

What do I need to make Healthy Chicken Zucchini Casserole?

12 ingredients, led by boneless skinless chicken breasts, zucchini, (14.5 oz) diced tomatoes, onion. Amounts are in the recipe card above.

Iren Pavlenko

Iren Pavlenko

Hi, I'm Iren Pavlenko. I read the top-ranked slow cooker recipes for a dish side by side and write down what they disagree on and what they all leave out — the cut, the pot size, and both the LOW and HIGH times. I write these guides so your weeknight dinner doesn't turn into a dry roast because a recipe never said which of those four things mattered.

Part of: 10 Crockpot Casserole Recipes for Dinner

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