Slow Cooker High-Protein Chicken & Veggies is a go-to recipe when I crave a delicious and effortless dinner. I usually prepare it early in the day, knowing the chicken and vegetables will cook perfectly while I focus on other tasks. It’s a simple, satisfying, and versatile meal that fits seamlessly into a busy lifestyle. It is a dependable dinner that fits easily into a busy routine.

👉 When planning a full week of slow cooker meals, I also highly recommend my Slow Cooker Cabbage Roll Casserole. It’s another fantastic and easy recipe.

What You’ll Need for Slow Cooker High-Protein Chicken & Veggies

This slow cooker chicken and vegetable recipe is all about simplicity and using fresh, readily available ingredients. Here’s a breakdown of the key components:

• Chicken thighs or breasts: Both options work well, but I find that chicken thighs stay exceptionally tender and moist during the slow cooking process. They also offer a good source of protein.
• Bell peppers: These add a touch of sweetness and a satisfying crunch as they soften in the slow cooker. Use a variety of colors for added visual appeal and a wider range of nutrients.
• Zucchini: Zucchini cooks relatively quickly and readily absorbs the flavors of the tomatoes and seasonings, making it a perfect addition to this dish.

👉 You need to try my Slow Cooker Butter Chicken next! It’s an explosion of flavor with minimal effort.

Full Ingredients List

Here’s the complete list of ingredients you’ll need to create this delicious and healthy slow cooker meal. Don’t worry, it’s all very straightforward and easy to find.

• 5 boneless, skinless chicken thighs or chicken breasts
• 1 yellow onion, diced
• 3 bell peppers, any color, diced
• 2 zucchini, sliced
• 1 tablespoon minced garlic
• 1 (14 oz) can diced tomatoes with juices
• 1½ teaspoons salt
• ½ teaspoon black pepper
• 1 teaspoon dried oregano
• ½ teaspoon dried thyme
• 1 teaspoon paprika

🔒 The printable recipe card below includes the full ingredient list and exact amounts — perfect for saving or printing for later. Keep it handy for quick reference!

Swaps & Substitutions

Flexibility is key when it comes to cooking! Here are a few easy swaps and substitutions you can make to customize this recipe to your liking or based on what you have on hand:

• Yellow squash works wonderfully in place of zucchini, offering a similar flavor and texture.
• Add a pinch of red pepper flakes if you want a gentle kick of heat. Adjust the amount to your spice preference.
• Feel free to experiment with other vegetables like mushrooms, carrots, or broccoli. Just keep in mind that cooking times may vary slightly.

How to Make Slow Cooker High-Protein Chicken & Veggies

Now for the fun part: putting it all together! This recipe is incredibly simple and requires minimal effort. Here’s a step-by-step guide:

Step 1: Place the chicken thighs or breasts in the bottom of the slow cooker. This ensures they cook evenly and stay nice and tender.

Step 2: Add the diced onion, bell peppers, zucchini, and minced garlic on top of the chicken. Layering the vegetables helps them cook evenly and infuses the chicken with flavor.

Step 3: Pour in the diced tomatoes with their juices. The tomatoes provide moisture and create a delicious sauce.

Step 4: Sprinkle the salt, black pepper, oregano, thyme, and paprika evenly over everything. These simple seasonings add a ton of flavor to the dish.

Step 5: Stir gently to distribute the vegetables and seasonings around the chicken. Be careful not to over-stir, as you want the vegetables to retain their shape.

Step 6: Cover and cook on LOW for 5 hours or HIGH for 3 hours, until the chicken is fully cooked and tender. The exact cooking time may vary depending on your slow cooker, so check for doneness using a meat thermometer. The internal temperature of the chicken should reach 165°F (74°C).

Step 7: If desired, shred the chicken with two forks and stir it back into the vegetables before serving. Shredding the chicken makes it easier to eat and helps it absorb even more flavor from the sauce.

🔒 The step-by-step instructions are also available in the printable recipe card below — don’t forget to save it for later! It’s perfect for keeping in your recipe binder or on your fridge.

Slow Cooker High-Protein Chicken & Veggies Variations

Want to mix things up? Here are a few delicious variations to try:

• Serve over rice, quinoa, or cauliflower rice for a complete and balanced meal.
• Shred the chicken and use it for wraps or bowls for a quick and easy lunch or dinner. Add some avocado and a dollop of sour cream for extra flavor and richness.
• Stir in a can of drained and rinsed chickpeas or white beans for added protein and fiber.

👉 When I want something creamy and comforting, my Creamy Tortellini Vegetable Soup is a great choice! It’s perfect for a chilly evening.

My Pro TipS

Tips and Tricks

Here are some helpful tips and tricks to ensure your slow cooker chicken and vegetables turn out perfectly every time:

• Arrange the chicken on the bottom of the slow cooker so it cooks evenly. This prevents it from drying out.
• Stir gently to keep the vegetables intact. Over-stirring can cause them to become mushy.
• Cutting the vegetables evenly helps them cook at the same rate. This ensures they are all tender at the same time.
• Letting the dish rest briefly before serving helps the juices settle, resulting in a more flavorful and moist meal.

Recipe FAQs – Slow Cooker High-Protein Chicken & Veggies

Got questions? Here are some frequently asked questions about this recipe:

Serving Suggestions

Here are some delicious serving suggestions to elevate your slow cooker chicken and vegetables:

• Serve over rice or quinoa for a hearty and satisfying meal.
• Add fresh herbs like parsley, cilantro, or basil, or a squeeze of lemon juice just before serving to brighten the flavors.
• My Homemade Naan Bread works well if you want something warm to serve alongside saucy slow cooker meals.

Make-Ahead, Storage & Reheating

Here’s how to properly store and reheat your slow cooker chicken and vegetables:

• Fridge: Store leftovers in an airtight container in the refrigerator for up to 4 days.
• Freezer: Freeze in airtight containers for up to 2 months.
• Reheat: Warm gently on the stove or in the microwave until heated through.

👉 Slow Cooker Cranberry Chicken is another recipe that reheats beautifully during those busy weeks. It’s a holiday favorite!