Single Pork Tenderloin Mushroom Crock Pot Recipe — So Easy It's Basically Cheating

Stuck with a single pork tenderloin and a craving for comfort food? Mushroom flavor is the shortcut to gourmet without the drama.

Crock pot magic does the heavy lifting while you pretend you planned this. But here’s the catch!

It takes almost no effort and tastes like you spent hours in the kitchen.

Equipment: Must-haves

• Crock pot (slow cooker) — your set-it-and-forget-it hero
• Cutting board — for chopping and show-off slicing
• Sharp knife — because sad shredded meat is a crime
• Mixing bowl — for sauce and cornstarch shenanigans
• Measuring cups and spoons — precision saves face
• Tongs — for moving the tenderloin without finger burns

Equipment: Nice-to-haves

• Skillet for searing (adds color and flavor)
• Meat thermometer so you don’t have to play temperature-psychic

Ingredients

• 1 pork tenderloin (about 1 pound)
• 8 oz mushroom, sliced (choose a variety you like)
• 1 small onion, diced
• 2 clove garlic, minced
• 1 cup low-sodium chicken broth
• 1/4 cup soy sauce (or tamari for gluten-free)
• 1 tbsp cornstarch (for thickening)
• 1/2 cup sour cream or plain Greek yogurt (added off heat)
• 1 tbsp olive oil (for searing)
• 1 bay leaf (optional, but classy)
• 1 tsp dried thyme
• Salt (to taste)
• Pepper (to taste)

Instructions

1. Pat the pork tenderloin dry with a paper towel and season it lightly with salt and pepper.
2. Heat a skillet over medium-high heat and add the olive oil until it shimmers.
3. Sear the pork tenderloin on all sides until it has a golden crust, then use tongs to transfer it to the crock pot.
4. In the same skillet, add the mushroom and onion and cook briefly until they begin to soften and pick up color.
5. Add the garlic to the skillet, stir for a few seconds, then transfer the mushroom, onion, and garlic into the crock pot around the pork tenderloin.
6. In a mixing bowl, whisk together the chicken broth, soy sauce, dried thyme, and bay leaf; use measuring cups and spoons so you don’t guess.
7. Pour the sauce over the pork tenderloin in the crock pot, making sure the pork is nestled in the liquid.
8. Cover and cook on low until the pork tenderloin reaches a safe internal temperature and is tender; check doneness with a meat thermometer.
9. When the pork is done, carefully remove it from the crock pot with tongs and let it rest on the cutting board while you finish the sauce.
10. Make a cornstarch slurry in the mixing bowl by whisking the cornstarch with a little cold water, then stir the slurry into the crock pot sauce to thicken; switch the crock pot to high if needed.
11. Once the sauce has thickened, remove the bay leaf and turn off the heat; let the sauce cool slightly before stirring in the sour cream so it doesn’t break.
12. Slice the pork tenderloin on the cutting board with the sharp knife against the grain into neat medallions.
13. Spoon the mushroom sauce over the sliced pork tenderloin and serve immediately, enjoying the applause (or at least an approving nod).

What Else You Should Know

Tips: Always sear the pork tenderloin first. That little brown crust adds deep flavor you can’t fake.

Variations: Swap the soy sauce for balsamic for a sweeter glaze, or add a splash of white wine to the sauce if you’re feeling fancy. Serving suggestion: Serve sliced pork tenderloin over mashed potato, cauliflower mash, or a bed of whole-grain rice to soak up the mushroom sauce.

Storage: Cool completely and refrigerate in an airtight container for up to three days. Reheat gently on low heat so the sour cream doesn’t split.

Nutrition note: This pork tenderloin recipe leans on lean protein and umami-packed mushroom to keep calories reasonable and flavor high. Pro tip: That final stir-in of sour cream (or Greek yogurt) makes the sauce velvety without tons of cream.

That’s why people love slow-cooker hacks. Troubleshooting: If the sauce is too thin, mash a piece of the pork or a few mushrooms into the liquid and simmer uncovered to reduce.

If the sour cream breaks, whisk a small spoonful of warm sauce into it before returning to the pot. Final reassurance: You’re using a single pork tenderloin and one mushroom batch, so the math is easy and the clean-up is minimal.

You did it—enjoy the praise and the seconds.