Low-Calorie One-Pot Healthy Chicken & Vegetable Casserole

The first time I made this casserole, it was a drizzly Tuesday in early November. My daughter had just started kindergarten, my inbox was exploding, and the fridge looked like a tornado had swept through the produce drawer. I needed something comforting that wouldn’t undo the 5 a.m. yoga class I’d dragged myself to, something that could simmer away while I helped with homework. One pot, minimal cleanup, big flavor, and—most importantly—light on calories. Forty minutes later we were spooning tender bites of herby chicken, sweet carrots, and silky zucchini from the same Dutch oven, the windows fogged with fragrant steam. My kiddo looked up, cheeks rosy, and declared it “the best orange stew ever.” That was four years ago; we’ve eaten it at least once a week since. Today I’m sharing the perfected version—360 calories per generous cup, 33 g of protein, and zero fuss.

Ingredient Breakdown

Great casseroles start with smart shopping. I reach for boneless, skinless chicken breast cut into ¾-inch cubes; the small pieces cook quickly and absorb the tomato-herb broth without turning stringy. A scant tablespoon of olive oil is enough to brown the meat and sauté the aromatics—after that, flavor comes from spices, not fat.

The vegetable line-up changes seasonally, but my base is always onion, carrot, zucchini, and bell pepper. They add natural sweetness, color, and bulk for minimal calories. For an extra fiber punch I fold in one can of no-salt cannellini beans (rinsed) during the last ten minutes; they melt slightly and thicken the sauce.

Instead of heavy cream, I use 1 cup of low-sodium chicken stock plus ⅓ cup plain Greek yogurt stirred in off-heat. The yogurt lends tangy creaminess and an extra 10 g protein per serving. A can of diced fire-roasted tomatoes provides depth and a whisper of smokiness.

Seasoning is deliberately simple: garlic, Italian herbs, smoked paprika, and a bay leaf. Finish with fresh parsley or basil for brightness. If you’re watching sodium, swap the stock for unsalted and add a pinch of lemon zest at the end—acidity tricks the palate into thinking “salt” without actually adding it.

Step-by-Step Instructions

1. Step 1 Season & Sear: Pat 1¼ lb (560 g) chicken breast cubes dry; toss with ½ tsp kosher salt, ¼ tsp pepper, and 1 tsp Italian seasoning. Heat 2 tsp olive oil in a heavy 4-quart Dutch oven over medium-high. Sear chicken 3 minutes per side until golden but not cooked through. Transfer to a plate.
2. Step 2 Sauté Aromatics: Lower heat to medium. Add diced onion and carrot; cook 4 minutes, scraping browned bits. Stir in 2 minced garlic cloves for 30 seconds until fragrant.
3. Step 3 Deglaze: Pour in ½ cup dry white wine (or extra stock) and simmer 1 minute. The liquid will loosen the fond and build flavor.
4. Step 4 Load the Veg: Add zucchini, bell pepper, 1 cup fire-roasted tomatoes, 1 cup stock, ½ tsp smoked paprika, and a bay leaf. Return chicken (and any juices) to the pot; stir.
5. Step 5 Simmer: Cover, reduce heat to low, and simmer 12–15 minutes until chicken reaches 165 °F and veggies are tender.
6. Step 6 Finish Creamy: Remove bay leaf. Stir in rinsed cannellini beans and 2 Tbsp chopped parsley. Off-heat, swirl in ⅓ cup Greek yogurt. Let stand 3 minutes to thicken.
7. Step 7 Taste & Serve: Adjust salt and pepper. Spoon into shallow bowls, top with extra herbs, and crack fresh black pepper.

Expert Tips & Tricks

• Cube Evenly: Uniform ¾-inch pieces cook at the same rate, preventing dry edges or raw centers.
• Yogurt Tempering: Let yogurt come to room temp and whisk in a splash of hot broth before adding to avoid curdling.
• Herb Swap: Fresh thyme or oregano can replace dried Italian seasoning—triple the quantity.
• Crunch Factor: Top each bowl with 1 tsp toasted panko mixed with lemon zest for texture without big calories.
• Slow-Cooker Adaptation: Brown chicken and aromatics on the stove, then transfer everything (except yogurt) to a slow cooker. Cook low 3 hours, stir in yogurt at the end.

Common Mistakes & Troubleshooting

Variations & Substitutions

• Spicy Cajun: Swap paprika for Cajun seasoning and add diced okra.
• Moroccan Twist: Add ½ tsp cinnamon, ¼ cup raisins, and substitute chickpeas for cannellini.
• Dairy-Free: Replace Greek yogurt with ¼ cup coconut milk yogurt.
• Vegetarian: Omit chicken; double beans and add 1 cup cauliflower florets. Use vegetable stock.
• Low-Carb: Skip beans and add 2 cups diced mushrooms for bulk—net carbs drop to 10 g per serving.

Storage & Freezing

Refrigerate: Cool completely, transfer to airtight containers, and refrigerate up to 4 days. The flavors deepen overnight.

Freeze: Portion into silicone muffin trays for single-serve pucks. Once solid, pop out and store in a zip bag up to 3 months. Thaw overnight in the fridge.

Reheat: Warm gently on the stove with a splash of broth or water; microwave 60-90 seconds for individual portions.

Frequently Asked Questions

Whether you’re feeding picky toddlers, refueling after a workout, or simply craving something cozy that won’t break the calorie bank, this low-calorie one-pot healthy chicken and vegetable casserole is about to become your new go-to. Make it tonight, save some for tomorrow, and bask in the smug glory of a nutritious dinner that tastes like comfort itself.

Low-Calorie One-Pot Chicken & Veggie Casserole

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Prep

10 min

Cook

30 min

Total

40 min

Serves 4

Easy

Ingredients

• 1 tsp olive oil
• 1 medium onion, diced
• 2 cloves garlic, minced
• 1 lb (450 g) skinless chicken breast, cubed
• 2 medium carrots, sliced
• 1 red bell pepper, chopped
• 1 zucchini, sliced
• 1 cup green beans, trimmed
• 1 cup low-sodium chicken broth
• 400 g can diced tomatoes
• 1 tsp dried thyme
• ½ tsp smoked paprika
• Salt & black pepper to taste
• 2 tbsp fresh parsley, chopped

Instructions

1. 1
   Heat olive oil in a large non-stick pot over medium heat. Sauté onion and garlic for 2-3 min until fragrant.
2. 2
   Add chicken cubes, season with salt & pepper, and cook 4-5 min until lightly browned.
3. 3
   Stir in carrots, bell pepper, zucchini, and green beans; cook 2 min.
4. 4
   Pour in diced tomatoes and chicken broth; add thyme and paprika. Bring to a gentle boil.
5. 5
   Reduce heat, cover, and simmer 15 min until vegetables are tender and chicken is cooked through.
6. 6
   Remove lid and simmer 5 more minutes to thicken slightly. Adjust seasoning.
7. 7
   Remove from heat, sprinkle with fresh parsley, and serve hot.

Recipe Notes

• Swap chicken breast for thighs for extra juiciness.
• Store leftovers in the fridge up to 4 days or freeze up to 3 months.
• Add a pinch of chili flakes for subtle heat.

Nutrition (per serving)

230

kcal

31 g

Protein

10 g

Carbs

5 g

Fat