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Transform forgotten pantry staples into a luxuriously creamy, deeply comforting mushroom and rice soup that tastes like it simmered all day—yet comes together in under 45 minutes. This is the recipe I reach for when the fridge looks bare, the produce drawer is limp, and the pantry shelves feel uninspired. One pot, humble ingredients, restaurant-worthy results.
Why This Recipe Works
- Pantry heroes: Uses shelf-stable rice, canned mushrooms, bouillon cubes, and dried herbs—no fresh produce required.
- One-pot wonder: Everything simmers together; the starch from the rice naturally thickens the broth.
- Deep umami: A spoonful of miso paste (or soy sauce) wakes up canned mushrooms and gives brothy depth.
- Creamy without cream: A quick roux + evaporated milk (or powdered milk) keeps it luscious yet light.
- Customizable: Swap grains, beans, or veggies based on what you have—recipe includes 10+ variations.
- Freezer-friendly: Portion into mason jars; reheat straight from frozen for instant comfort meals.
Ingredients You'll Need
Before we dive into the method, let’s talk ingredients. The beauty of this soup is its flexibility—think of the list below as a roadmap, not a rulebook. I’ve included notes on substitutions, quality cues, and smart pantry swaps so you can cook confidently with what you have.
Aromatics & Fats
- 2 Tbsp oil or butter – Any neutral oil works; butter adds richness. Save bacon drippings for smoky depth.
- 1 medium onion – Yellow, white, or even frozen diced onion. If you’re out, sub 1 Tbsp onion powder in the roux.
- 2 cloves garlic – Jarred minced garlic is fine. In a pinch, ½ tsp garlic powder.
Mushrooms
- 2 cups canned mushrooms, drained – Look for whole or sliced; rinse to reduce tinny flavor. Reserve liquid for extra mushroom stock.
- Optional boost: If you have any fresh mushrooms wilting in the fridge, chop and add ½ cup for texture contrast.
Rice & Thickening
- ¾ cup long-grain white rice – Basmati, jasmine, or standard pantry rice. Brown rice works; extend simmer time to 30 min.
- 3 Tbsp all-purpose flour – Whole-wheat or gluten-free 1:1 blends work. For grain-free, use 2 Tbsp cornstarch slurry at the end.
Liquids & Seasonings
- 4 cups water + 2 bouillon cubes – Or 4 cups shelf-stable broth. I keep low-sodium bouillon cubes on hand for emergencies.
- 1 cup evaporated milk – Shelf-stable dairy gives creamy body without curdling. Sub ½ cup heavy cream + ½ cup water, or 1 cup reconstituted powdered milk.
- 1 Tbsp white miso paste – Secret umami bomb. No miso? Use 2 tsp soy sauce + 1 tsp tomato paste.
- 1 tsp dried thyme – Dried oregano or Italian seasoning also lovely.
- ½ tsp smoked paprika – Adds subtle campfire note; regular paprika is fine.
- Salt & pepper – Add at the end; bouillon and miso vary in sodium.
Finishing Touches
- 1 tsp lemon juice or vinegar – Brightens canned flavors.
- Fresh parsley or chives – Optional garnish; dried flakes work too.
How to Make Pantry Clean Out Mushroom Soup with Rice
Prep your pantry staples
Open the canned mushrooms, drain, and give them a quick rinse under cool water to remove any metallic taste. Pat dry with a paper towel—this helps them sear instead of steam. Dice the onion and mince the garlic now; the soup comes together quickly once the pot is hot.
Sauté aromatics & mushrooms
Place a heavy-bottomed pot or Dutch oven over medium heat. Add oil or butter. Once shimmering, scatter in the onions with a pinch of salt. Cook 4–5 min until translucent and just beginning to turn golden on the edges. Stir in garlic for 30 sec, then add mushrooms. Let them sit undisturbed 2 min so they pick up a little color; stir and continue cooking another 3 min. The fond (brown bits) on the bottom equals flavor.
Build your roux
Sprinkle the flour over the mushroom mixture. Stir constantly for 2 min; you want the flour to turn a pale beige and smell faintly nutty. This step cooks out the raw flavor and thickens the broth later. If pot looks dry, drizzle in another teaspoon of oil.
Deglaze & dissolve
Whisk in 1 cup of the water, scraping the bottom to lift every browned bit. Once smooth, whisk in remaining 3 cups water plus bouillon cubes, miso paste, thyme, and smoked paprika. Bring to a gentle boil—this ensures the bouillon and miso fully dissolve before adding rice.
Add rice & simmer
Stir in the rice. Reduce heat to low, cover with lid slightly ajar, and simmer 15–18 min (or according to rice package). Stir once halfway to prevent sticking. The soup will thicken as the rice releases starch.
Finish with creaminess
When rice is tender, reduce heat to the lowest setting and stir in evaporated milk. Warm 2 min—do NOT boil or the milk may curdle. Taste and season with salt, pepper, and lemon juice. The acid brightens canned flavors and balances richness.
Rest & serve
Let soup stand off-heat 5 min; it will continue to thicken. Ladle into warm bowls, top with parsley or chives, and serve with crusty bread or crackers. Leftovers reheat beautifully—add a splash of water or broth to loosen.
Expert Tips
Control the heat
Once evaporated milk goes in, keep the flame low. A gentle simmer prevents curdling yet still heats the dairy safely.
Thin or thicken
Prefer brothy? Add an extra cup of water at the end. Want stew-like? Mash a ladle of rice against the pot and stir back in.
Overnight flavor
Make it the night before; the rice absorbs seasoning and tastes even better. Store chilled and reheat gently with broth.
Salt last
Bouillon cubes and miso vary in sodium. Taste after simmering and adjust salt only at the end to avoid over-salting.
Cool before freezing
Chill soup completely in an ice bath before ladling into freezer bags. Lay flat to freeze; they stack like books and thaw quickly.
Rice swap
Quinoa cooks in 12 min, pearled barley in 25 min, instant brown rice in 10 min. Adjust liquid and timing accordingly.
Variations to Try
- Creamy Chicken & Rice: Stir in 1 cup shredded rotisserie chicken with the milk.
- Wild Rice & Almond: Use wild rice blend and finish with toasted slivered almonds and a pinch of nutmeg.
- Tex-Mex: Swap thyme for cumin, add 1 cup black beans and ½ cup corn; garnish with cilantro and squeeze of lime.
- Curried Coconut: Replace evaporated milk with canned coconut milk and add 1 tsp yellow curry powder.
- Tomato Basil: Stir in ½ cup canned crushed tomatoes and ¼ cup chopped sun-dried tomatoes with the broth.
- Lentil Boost: Add ¼ cup red lentils with rice for extra protein—they dissolve and make it even thicker.
Storage Tips
Refrigerator: Cool soup completely, transfer to airtight container, and refrigerate up to 4 days. The rice will continue to absorb liquid, so thin with broth or water when reheating.
Freezer: Portion into labeled freezer bags or 16-oz mason jars (leave 1 in headspace). Freeze up to 3 months. Thaw overnight in fridge or microwave on 50 % power, stirring often.
Make-ahead rice: If you plan lots of leftovers, cook rice separately and add to each serving; freezing rice in soup can turn it mushy upon reheat.
Frequently Asked Questions
Pantry Clean Out Mushroom Soup with Rice
Ingredients
Instructions
- Sauté aromatics: Heat oil in pot over medium. Add onion; cook 4 min. Stir in garlic 30 sec, then mushrooms 5 min.
- Make roux: Sprinkle flour over veg; stir 2 min until lightly browned.
- Deglaze: Whisk in 1 cup water, scraping bits. Add remaining water, bouillon, miso, thyme, paprika; bring to boil.
- Simmer rice: Stir in rice, reduce heat, cover ajar; cook 15–18 min until rice is tender.
- Finish: Lower heat; stir in evaporated milk and lemon juice. Warm 2 min—do not boil. Season with salt & pepper.
- Rest & serve: Let stand 5 min. Garnish with parsley; serve hot.
Recipe Notes
For gluten-free, replace flour with 2 Tbsp cornstarch slurry added at the end. Soup thickens on standing—thin with broth when reheating.
