This rich, savory pasta brings together deeply caramelized onions, tender mushrooms, and a splash of red wine for a dish that feels elegant yet remains incredibly simple to prepare. It’s a comforting vegan meal that turns basic ingredients into something special.
Why You’ll Love This Recipe
A rich and savory pasta perfectly balanced with sweet caramelized onions and earthy mushrooms.
Ideal for weeknights or date nights thanks to its impressive flavor and simple preparation.
Naturally vegan and easily made gluten-free with the right pasta choice.
A versatile recipe that welcomes add-ins or substitutions while remaining delicious as is.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
8 ounces brown rice pasta
1/4 cup olive oil
4 cups sliced yellow onions
2 pinches salt
2 pinches brown sugar or 2 splashes balsamic vinegar
2 cups sliced baby bella mushrooms
Pepper to taste
1/2 cup red wine
Nutritional yeast or chopped parsley for topping (optional)
Directions
Bring a large pot of salted water to a boil. Cook the pasta according to package directions, then drain and set aside.
Heat the olive oil in a large skillet over medium heat. Add the sliced onions and salt.
Cook the onions slowly, stirring every few minutes, until deeply caramelized—about 35–40 minutes. Add the brown sugar or balsamic vinegar during the final 5 minutes of cooking.
Add the sliced mushrooms and pepper. Cook until the mushrooms are tender, about 5 minutes.
Pour in the red wine and simmer until it reduces and is fully absorbed.
Serve the caramelized onion and mushroom mixture over the cooked pasta, or toss everything together so the pasta absorbs the sauce.
Add sautéed asparagus, spinach, or roasted bell peppers for extra vegetables.
Substitute balsamic vinegar for the brown sugar for a tangier, deeper flavor.
Use gluten-free spaghetti, penne, or fettuccine depending on your preference.
For added richness, stir in a splash of non-dairy cream at the end.
Add crushed red pepper flakes for a mild heat.
Storage/Reheating
Store leftovers in an airtight container in the refrigerator for up to 5 days.
Reheat on the stovetop over low heat with a small splash of water or vegetable broth to loosen the sauce.
This dish is not recommended for freezing, as caramelized onions and mushrooms may change texture.
FAQs
How long does it take to properly caramelize onions?
Caramelizing onions typically takes 35–40 minutes over medium to medium-low heat to achieve a deep golden color and sweet flavor.
Can I use a different type of onion?
Yes, sweet onions or white onions work well, though sweet onions will produce an even sweeter result.
What type of mushrooms work best?
Baby bella (cremini) mushrooms offer a rich, earthy flavor, but portobello or white button mushrooms are also suitable.
Can I make this without wine?
Yes, you can replace the wine with vegetable broth plus 1 teaspoon of balsamic vinegar for depth.
Is this recipe gluten-free?
It is gluten-free when made with gluten-free pasta, such as brown rice noodles.
Can I add protein to the dish?
Absolutely—chickpeas, tofu cubes, or lentils pair well with the flavors in this pasta.
How can I prevent the onions from burning?
Keep the heat moderate, stir regularly, and avoid rushing the caramelization process.
Can I prepare the onions ahead of time?
Yes! Caramelized onions can be made up to 3 days in advance and refrigerated.
What wine should I use?
Choose a red wine you enjoy drinking. A medium-bodied option works well.
Can I double the recipe?
Yes, this recipe scales up easily—just use a larger skillet for even cooking.
Conclusion
Caramelized Onion and Mushroom Pasta is a simple yet elegant dish built on slow-cooked flavor and wholesome ingredients. Whether you’re making a cozy weeknight meal or an impressive dinner for guests, this recipe delivers rich taste with minimal effort. Enjoy every comforting bite.
This Caramelized Onion and Mushroom Pasta is a rich and savory vegan dish made with deeply caramelized onions, tender mushrooms, and a splash of red wine, all tossed with gluten-free pasta. Elegant yet simple, it’s perfect for cozy weeknights or special occasions.
Ingredients
8 ounces brown rice pasta
1/4 cup olive oil
4 cups sliced yellow onions
2 pinches salt
2 pinches brown sugar or 2 splashes balsamic vinegar
2 cups sliced baby bella mushrooms
Pepper to taste
1/2 cup red wine
Nutritional yeast or chopped parsley for topping (optional)
Instructions
Bring a large pot of salted water to a boil. Cook pasta according to package instructions, then drain and set aside.
Heat olive oil in a large skillet over medium heat. Add sliced onions and salt.
Cook onions slowly for 35–40 minutes, stirring occasionally, until deeply caramelized. Add brown sugar or balsamic vinegar during the last 5 minutes of cooking.
Add mushrooms and pepper. Cook for about 5 minutes, until mushrooms are soft and browned.
Pour in red wine and simmer until mostly absorbed, 3–5 minutes.
Serve the onion and mushroom mixture over cooked pasta or toss together to combine.
Top with nutritional yeast or parsley if desired. Serve warm.
Notes
Caramelized onions can be made in advance and stored up to 3 days in the fridge.
Use vegetable broth with balsamic vinegar instead of wine for an alcohol-free version.
Choose any gluten-free pasta you like—penne, spaghetti, or fettuccine work well.
Add a splash of non-dairy cream for extra richness if desired.
