A bowl of creamy leftover pork tenderloin casserole mixed with peas, carrots, mushrooms, rice, and a crispy breadcrumb topping.

Great Leftover Pork Tenderloin Casserole Recipe

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If you have leftover pork tenderloin and want to turn it into a comforting and flavorful meal, this Leftover Pork Tenderloin Casserole is the perfect dish. This easy-to-make casserole uses simple pantry staples and transforms your leftover pork into a satisfying dish that everyone will love. And it doesn’t use canned soup with all of the chemicals.

Casserole dish with mixed vegetables and crumb topping, featuring tender pieces of leftover pork tenderloin. Titled "Leftover Pork Tenderloin Casserole Recipe," it includes easy instructions to print the recipe.

Making a casserole without cream soups that can be put in the oven when you get home from work is a great way to have meal prep done. And you can feel good about the ingredients, too, because you aren’t using all those chemicals.

Pork Tenderloin

Using leftover pork saves time and money by reinventing meat that is already cooked instead of throwing it away! Pork tenderloin is a tender, juicy cut of meat that is so flavorful and melts in your mouth! For ideas on how to cook pork tenderloin, check these out:

Close-up of a leftover pork tenderloin casserole topped with a golden breadcrumb crust, showcasing visible vegetables like corn and carrots in a baking dish.

Leftover Pork Tenderloin Casserole Recipe

This casserole is full of all the flavor, skips the chemicals of store bought canned cream soups, and cuts your cooking time down by using leftover meat that might go to waste. Once I made this the first time, I started cooking two tenderloins for my husband and I so we could have it fresh and make this too!

Leftover pork tenderloin casserole simmers as chopped onions sauté in a pan with oil, the white and purple pieces sizzling to perfection.
A creamy soup with various mixed vegetables like peas, corn, and diced carrots is being stirred with a wooden spoon, perfect for pairing with leftover pork tenderloin casserole.
Close-up of diced cooked meat, yellow rice, and shredded cheese combine to create a delectable leftover pork tenderloin casserole.
A creamy casserole dish featuring rice, diced carrots, green beans, mushrooms, peas, and pieces of leftover pork tenderloin for a delicious twist.
Unbaked casserole with leftover pork tenderloin topped with shredded cheese, mixed vegetables, and breadcrumbs in a baking dish.
A serving of vegetable and leftover pork tenderloin casserole with a breadcrumb topping is shown in a white bowl. The remainder of the dish rests invitingly in a square baking pan in the background.
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Leftover Pork Tenderloin Casserole Recipe

Creamy rice and vegetable casserole made with leftover pork tenderloin and all the delicious flavors!
Prep Time15 minutes
Cook Time40 minutes
Total Time55 minutes
Course: Main Course
Cuisine: American
Keyword: leftover pork, leftover pork tenderloin, leftover pork tenderloin casserole, pork tenderloin, pork tenderloin casserole
Servings: 6
Calories: 556kcal
Author: Christina

Ingredients

For the Casserole:

  • 2 cups leftover pork tenderloin diced
  • 3 cups cooked rice
  • 1 cup mixed vegetables
  • 1 small onion diced
  • 2 cloves garlic minced
  • 3 tablespoons butter
  • 3 tablespoons flour
  • 1/2 cup chicken or vegetable stock
  • 3/4 cup whole milk
  • 1 cup mushrooms chopped
  • 1/2 cup sour cream or Greek yogurt for a lighter option
  • 1/2 cup milk
  • 1 teaspoon Dijon mustard optional for extra flavor
  • 1 teaspoon Italian seasoning
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 cup shredded cheddar cheese

For the Topping:

  • 1/2 cup breadcrumbs
  • 2 tablespoons butter melted
  • 1/4 cup Parmesan cheese

Instructions

  • Preheat oven to 375°F (190°C).
  • Grease a 9×13-inch baking dish with butter or cooking spray.
  • Heat 1 tablespoon of oil in a pan over medium heat.
  • Add diced onion and minced garlic, and sauté for 3-4 minutes until soft and fragrant.
  • Stir in the flour
  • Cook and stir until flour just starts to brown
  • Add chicken stock and 3/4 cup whole milk all at once
  • Cook and stir until thick and bubbly
  • Stir in the frozen peas and carrots, and cook for another 2 minutes.
  • Add sour cream, remaining milk, Dijon mustard, Italian seasoning, salt, and pepper.
  • Add the cooked rice and diced pork tenderloin, and mix well.
  • Fold in 1/2 cup shredded cheddar cheese.
  • Pour the mixture into the prepared baking dish.
  • Sprinkle the remaining 1/2 cup cheddar cheese on top.
  • In a small bowl, mix breadcrumbs, melted butter, and Parmesan cheese, then sprinkle over the casserole.
  • Bake for 25-30 minutes, until the top is golden brown and bubbly.
  • Serve & Enjoy
  • Let the casserole cool for 5 minutes before serving.
  • Garnish with fresh parsley or green onions.

Nutrition

Calories: 556kcal | Carbohydrates: 42g | Protein: 32g | Fat: 28g | Saturated Fat: 16g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 7g | Trans Fat: 0.4g | Cholesterol: 123mg | Sodium: 723mg | Potassium: 614mg | Fiber: 3g | Sugar: 4g | Vitamin A: 2310IU | Vitamin C: 5mg | Calcium: 356mg | Iron: 4mg

Tips & Variations

Make It Healthier:

  • Use brown rice or whole wheat noodles for more fiber.

Add Extra Flavor:

  • Stir in chopped mushrooms or bell peppers for more veggies.
  • Add a dash of hot sauce or red pepper flakes for a little heat.
  • Mix in bacon bits or crispy fried onions for extra crunch.

Storage & Reheating:

  • Refrigerate: Store leftovers in an airtight container for up to 3 days.
  • Freeze: Freeze in a sealed dish for up to 2 months.
  • Reheat: Warm in the oven at 350°F (175°C) for 15 minutes, or microwave individual portions.

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