Crockpot Portobello Brown Gravy Pot Roast Tips, FAQ & printable recipe

Tips for success

For the most flavorful gravy, use a good-quality beef broth-based gravy, or enrich a store-bought version with a splash of Worcestershire sauce or a spoonful of tomato paste.

If you prefer a thicker sauce, mix 2 tablespoons of cornstarch with 2 tablespoons of cold water and stir it into the slow cooker during the last 30 minutes of cooking. Let it bubble until thickened.

To make the meal even easier, serve the pot roast straight from the slow cooker with crusty bread or egg noodles to soak up the gravy.

Leftover shredded beef is fantastic in sandwiches, over mashed potatoes, or stirred into a hearty soup. Store leftovers in an airtight container in the refrigerator for up to 4 days, or freeze for up to 3 months.

Variations

• Herb-Infused: Add 2 sprigs of fresh rosemary and 3 sprigs of thyme to the slow cooker along with the gravy. Remove the herb stems before serving for a fragrant, earthy note that complements the beef.
• Onion and Mushroom: Layer 1 large sliced onion under the roast and add an extra 4 oz of mushrooms. The onion caramelizes slowly, adding sweetness to the gravy and extra depth to the dish.
• Spicy Kick: Stir 1 teaspoon of smoked paprika and 1/2 teaspoon of crushed red pepper flakes into the gravy before pouring it over the roast. This adds a subtle warmth that enhances the beefy flavor.
• Red Wine Gravy: Replace 1/2 cup of the beef gravy with dry red wine. The wine deglazes the slow cooker and adds a rich, complex flavor that pairs beautifully with the mushrooms.

Storage and make-ahead

Fridge

Store in an airtight container in the refrigerator for up to 4 days. Reheat gently, adding a splash of broth if needed.

Freezer

Freeze in a freezer-safe container for up to 3 months. Thaw overnight in the refrigerator before reheating.

Reheat

Reheat in a saucepan over medium-low heat, stirring occasionally, until warmed through. Add a little beef broth to loosen the sauce if necessary.

Store leftover pot roast and gravy in an airtight container in the refrigerator for up to 4 days. The flavors will continue to meld, making the leftovers even more delicious. Reheat gently on the stovetop or in the microwave, adding a splash of beef broth if the sauce has thickened too much.

This recipe is ideal for meal prep. Assemble the ingredients in the slow cooker insert the night before, cover, and refrigerate overnight. In the morning, place the insert in the slow cooker and cook on low as directed.

You can also cook the roast a day ahead, then reheat it gently before serving—the meat becomes even more tender after resting in the sauce.

Serving ideas

Serve this pot roast as a hearty main course with mashed potatoes, buttered egg noodles, or creamy polenta to soak up the rich gravy. A side of roasted green beans or a crisp green salad balances the richness. For a casual meal, pile the shredded beef onto toasted brioche slider buns and top with a spoonful of the mushrooms and gravy.

Garnish with a sprinkle of fresh chopped parsley or thyme for a pop of color, if desired. The dish is satisfying on its own, but a glass of full-bodied red wine, such as Cabernet Sauvignon or Merlot, pairs beautifully with the deep beefy flavors.

Leftovers can be transformed into a quick lunch by reheating and serving over rice or in a warm tortilla.

Frequently asked questions

Recipe card

Crockpot Portobello Brown Gravy Pot Roast

Prep 10 minCook 8 hTotal 8 h 10 minServes 6

Ingredients

• 3 1/2 lb beef bottom round roast
• 8 oz portobello mushroom caps, thickly sliced
• 2 tbsp minced garlic
• 2 cups beef brown gravy
• 2 tbsp unsalted butter, cut into pats

Instructions

1. Place the beef bottom round roast in the center of the slow cooker. Scatter the sliced portobello mushrooms and minced garlic over the top of the roast.
2. Pour the beef brown gravy over the roast and mushrooms. Dot the top with the pats of unsalted butter.
3. Cover the slow cooker and cook on low for 8 to 10 hours, until the beef is fork-tender and easily shreds. Let it rest for 3 minutes before slicing.
4. Turn off the slow cooker. Let the roast rest in the sauce for at least 3 minutes, then shred or slice the beef. Serve hot with the mushrooms and gravy spooned over the top.

Contains: milk, gluten

Estimated nutrition per serving

Calories

480

Protein

48 g

Carbohydrates

8 g

Fat

28 g

Automatic estimate from the ingredient list, not laboratory-verified.