Baked Chicken Tenderloins in Creamy Mustard Sauce

This easy 5-ingredient baked chicken recipe brings back the comforting charm of old-fashioned family dinners. Tender chicken tenderloins are coated in a rich, creamy mustard sauce made with simple pantry staples, then baked until juicy and flavorful. With just a few minutes of preparation, you can put a delicious homemade chicken casserole in the oven without spending hours in the kitchen.

Perfect for busy weeknights, Sunday family dinners, or those evenings when you want something hearty and satisfying, this vintage-inspired chicken dish delivers big flavor with minimal effort. Serve it over fluffy rice, buttery egg noodles, or creamy mashed potatoes to soak up every bit of the delicious sauce.

Ingredients

• 1 1/2 pounds raw chicken tenderloins
• 1 packet dry onion soup mix (about 1 ounce)
• 1 can condensed cream of chicken soup (10.5 ounces)
• 1/2 cup mayonnaise
• 1/2 cup yellow mustard

Instructions

1. Preheat your oven to 375°F. Lightly grease a 9 × 13-inch glass baking dish and arrange the raw chicken tenderloins in a single layer.
2. In a medium bowl, combine the dry onion soup mix, cream of chicken soup, mayonnaise, and yellow mustard. Stir until the sauce is smooth.
3. Spread the creamy mustard mixture evenly over the chicken, making sure every tenderloin is well coated.
4. Bake uncovered for 25–30 minutes, or until the chicken reaches an internal temperature of 165°F at its thickest point.
5. Let the casserole rest for 5 minutes before serving. Spoon the tender chicken and creamy sauce over rice, egg noodles, or mashed potatoes.

Benefits of This Easy Baked Chicken Recipe

• Only 5 ingredients: A short ingredient list makes shopping and meal preparation simple.
• Quick preparation: Assemble the casserole in minutes and let the oven do most of the work.
• Budget-friendly dinner: Everyday pantry staples help create a satisfying family meal without requiring specialty ingredients.
• Comfort food favorite: The creamy, tangy sauce and tender chicken make this recipe a wonderful choice for cozy family dinners.
• Versatile serving options: Pair it with rice, pasta, potatoes, steamed green beans, roasted zucchini, or a fresh garden salad.
• Easy to customize: Adjust the mustard for a milder flavor or add sliced tomatoes and zucchini for extra variety.

Helpful Cooking Tips

• For a milder sauce, reduce the yellow mustard to 1/3 cup and add 2 tablespoons of water.
• Avoid overbaking the chicken tenderloins. Begin checking for doneness at the 25-minute mark.
• For extra vegetables, add sliced zucchini or tomatoes around the chicken before baking.
• Boneless, skinless chicken thighs can replace tenderloins, but they may require additional cooking time.
• For the best results, use a meat thermometer to confirm the chicken has reached 165°F.