Dinner · Part 2 of 3: Instructions
Creamy Slow Cooker Turkey Tenderloin Stroganoff Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 4
Before you start
Before beginning, ensure that your slow cooker insert is clean and dry. Prepare the turkey by slicing the tenderloin into uniform medallions to ensure even cooking.
Wash and slice the mushrooms and onions, aiming for consistent thickness to promote uniform softening. Ensure all ingredients are measured and ready, as the assembly process is quite fast once you begin layering the components in the slow cooker.
Ingredients at a glance (5)
- 1 lb turkey tenderloin medallions
- 8 oz sliced mushrooms
- 1 cup sliced onions
- 1 tsp paprika
- 1 can (10.5 oz) condensed mushroom soup
Instructions
Layering the base
- Prepare the slow cookerArrange the turkey tenderloin medallions in an even layer at the bottom of the slow cooker insert. Ensure the meat is laid out flat to promote even cooking throughout the process.Look for Turkey covers the bottom of the slow cooker evenly.Tip Pat the turkey dry with paper towels before placing into the cooker to ensure a better texture.
At this stage, the turkey medallions are neatly arranged at the bottom of the slow cooker. The mushrooms and onions are piled on top, and the paprika is evenly distributed.
Everything should look organized and ready for the final addition of the mushroom soup. Ensure the turkey is not overlapping excessively to allow for uniform heat distribution.
Adding the sauce
- Add vegetables and aromaticsPile the sliced mushrooms and onions directly over the turkey layer. Sprinkle the paprika evenly across the top of the vegetables to ensure the flavor distributes as the dish cooks.Look for Mushrooms and onions are piled over the turkey.Tip Do not stir the ingredients at this stage; keeping them layered helps the vegetables release moisture properly.
The condensed mushroom soup is spooned over the vegetables. At this point, the slow cooker is ready to be covered. The visual check confirms that the ingredients are layered correctly without being mixed, ensuring the slow cooking process begins under the right conditions for a rich and creamy final sauce texture.
Slow cooking and resting
- Add soup and slow cookSpoon the condensed mushroom soup over the top of the mushrooms and onions. Cover the slow cooker and cook on low for 4 hours until the turkey reaches an internal temperature of 165°F (74°C). Allow the meat to rest for at least 3 minutes before serving.Look for Sauce is bubbly and turkey is cooked through.Safe temperature 165°F (74°C) internal temperature (poultry)Tip Ensure the lid is fully closed to maintain consistent heat and pressure throughout the cooking cycle.
The turkey has simmered until tender and the sauce has reached a thick, velvety consistency. The mushrooms and onions have softened significantly, and the aromas are fully developed. After the rest period, the dish is ready to be served, with the turkey perfectly tender and coated in the savory mushroom gravy.
Common mistakes
A common mistake is overcooking the turkey by leaving it in the slow cooker for too long, which can affect the texture. Always monitor the cooking time and start checking the temperature around the four-hour mark.
Another error is stirring the ingredients too early; keeping the layers intact allows the steam to cook the vegetables and meat effectively without creating a watery consistency in the final sauce.
How to tell it’s done
The turkey is properly cooked when it reaches an internal temperature of 165°F (74°C). Use a digital meat thermometer inserted into the thickest part of the medallion to verify.
The sauce should be thick, creamy, and fragrant, with the mushrooms and onions softened and fully incorporated into the mushroom gravy. Allow the dish to rest for five minutes after cooking to let the juices redistribute before serving.
- Poultry: 165°F (74°C) in the thickest part
- Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest
Up next · Part 3 of 3
2 variations · storage & make-ahead · 3 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)