Bring a large pot of salted water to a boil. Cook the pasta according to the package directions, then drain and set aside.
16 ounces short pasta noodles
Melt the butter in a large pot over low heat. Add the olive oil and onions. Cook for 15 to 20 minutes, until the onions have reduced significantly and caramelized. Don’t rush this step or turn up the heat, or the onions may burn.
2 tablespoons unsalted butter, 2 tablespoons olive oil, 2 large white onions
Add the mushrooms. Cook for 10 minutes, until they have reduced significantly.
8 ounces baby portabella mushrooms
Add the beef broth, wine, thyme, Worcestershire sauce, and salt. Stir to combine, bring to a simmer, and cook for 5 minutes.
1 cup beef broth, 1 cup dry white wine, 2 thyme sprigs, 1 teaspoon Worcestershire sauce, ½ teaspoon salt
Stir in the heavy cream and Parmesan until the cheese melts. Bring the mixture back to a simmer, then stir in the cooked pasta.
1 cup heavy cream, ½ cup parmesan cheese
Serve immediately with minced thyme and toasted bread, if desired.
Notes
I like to use a dry white wine such as Pinot Grigio or Sauvignon Blanc. A wine like Riesling is going to be too sweet.
The white wine can be swapped with with broth if you'd rather not use wine.
If possible, shred the parmesan cheese right off the block. It will melt so much better.
Refrigerate leftovers in an airtight container for up to 3 days. Reheat in the microwave or on the stovetop at low heat until warmed through.
The listed calories are an approximation based on the ingredients and a serving size of 2 cups. Actual calories will vary.
Nutrition Facts
Creamy French Onion Pasta with Mushrooms
Serving Size
2 cups
Amount per Serving
Calories
672
% Daily Value*
Fat
32
g
49
%
Saturated Fat
16
g
80
%
Trans Fat
0.2
g
Polyunsaturated Fat
2
g
Monounsaturated Fat
10
g
Cholesterol
75
mg
25
%
Sodium
629
mg
26
%
Potassium
591
mg
17
%
Carbohydrates
77
g
26
%
Fiber
4
g
16
%
Sugar
7
g
8
%
Protein
18
g
36
%
Vitamin A
947
IU
19
%
Vitamin C
5
mg
6
%
Calcium
167
mg
17
%
Iron
2
mg
11
%
* Percent Daily Values are based on a 2000 calorie diet.