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Caramelized Onion and Mushroom Pork Loin Dinner

Total Time30 mins
Servings: 4
Author: Cristen


  • 4 - 4 oz boneless pork loin slices tenderized
  • seasoned salt and pepper
  • 2 TBSP olive or vegetable oil
  • 1 large yellow onion/sweet onion cut in half sliced into half rings (1/2")
  • 1 pinch of salt
  • 1 cup water  divided
  • 1 - 16 oz. container white or cremini button mushrooms cleaned
  • 1/2 tsp garlic salt
  • 4 cloves of garlic chopped
  • 1 1/2  tsp dried thyme *optional but it is really good
  • 2 tsp red wine vinegar
  • 3 TBSP butter
  • Season boneless loin slices with seasoned salt and pepper.


  • Over medium high heat, add oil and fry pork for 2 1/2 minutes per side. Remove from skillet to plate. Repeat until all 4 slices are cooked. (145 internal temperature to 160 degree internal temperature)
  • To that pan add onion and 1/4 cup water. Stir around to scrape up browned bits. Stir onions until tender (5 minutes), then reduce heat to medium. Continue to cook onions until golden brown and soft. (8-12 more minutes) *Add additional water as-needed to keep onions from sticking and burning.
  • In a separate skillet on a separate burner add mushrooms and 1/4 cup water. Cook over medium to medium high heat, continuously stirring for 8 minutes until golden and reduced a bit. Reduce heat and add garlic, thyme and red wine vinegar. Cook 3-4 more minutes until garlic is translucent and tender.
  • Combine onions and mushrooms, add butter and cook together for a couple of minutes. Remove from heat.
  • Serve one pork slice with onions and mushrooms on top. Makes 4 servings.
  • Suggested sides:Mashed Potatoes
    Green Beans


The water in this recipe is simply used to aid in cooking the vegetables. It does not take away from flavor, it simply speeds the cooking process (think of dry heat vs. wet heat). You may use more water, or less, depending on how hot your burners are and how fast that water is evaporating. The key in making this recipe is to never let the onions or mushrooms get dry during cooking.