What makes this chateaubriand<\/a> so magical? It’s the perfect blend of elegance and comfort. This rosemary-garlic chateaubriand is tender and savory. A silky red wine mushroom sauce adds just the right touch of luxury, while the roasted Parmesan-acorn squash brings balance with its sweet, nutty warmth. You’ve got a complete holiday meal that’s elegant enough for a celebration but cozy enough to feel at home.<\/p>\n Chateaubriand isn’t an everyday meal, which makes it perfect for the holidays! Omaha Steaks Butcher’s Cut Chateaubriand<\/a> is a roast-sized filet mignon that is double-trimmed by master butchers and aged for at least 30 days for incredible flavor, earning the coveted USDA Certified Very Tender designation. For even more richness, Omaha Steaks Red Wine & Mushroom Finishing Sauce<\/a> is the perfect complement.<\/p>\n To cook the perfect chateaubriand, start by thawing in the refrigerator for 24 to 48 hours. Once fully thawed, pat dry with paper towels and season with salt and pepper. Let the filet mignon roast sit out at room temperature on the counter for about 30 minutes. Next, rub the rosemary-garlic oil all over the roast and let it sit at room temperature for an additional 30 minutes, allowing the flavors to sink in. Transfer the chateaubriand to a roasting rack and place it on the center rack of the oven. Roast for about one hour until the internal temperature is 120 degrees Fahrenheit via a meat thermometer for rare doneness. Refer to our helpful Omaha Steaks Roast Cooking Chart<\/a> for different doneness temperatures.Once done, remove the chateaubriand from the oven and let it rest for 15 to 20 minutes before slicing.<\/p>\n During the holidays, every dish on the table should feel a little special, and this Parmesan acorn squash delivers just the right touch of cozy elegance.<\/p>\n Increase the oven temperature to 400 degrees Fahrenheit. While waiting for the oven, trim about a half-inch from the top and bottom of the squash. Slice down the middle and remove the seeds with a spoon. Then, slice the squash lengthwise into half-inch slices.<\/p>\n Toss the squash slices in a medium bowl with olive oil, salt, and pepper. Arrange them on a large baking sheet and roast for 15 minutes, then flip the slices and roast for another 10 minutes.<\/p>\n While the squash finishes roasting, mix the Parmesan cheese and thyme in a clean medium bowl. Sprinkle the Parmesan-thyme mixture evenly over the squash. Roast for an additional five minutes until the cheese is crispy, golden, and bubbling. Serve warm alongside the chateaubriand.<\/p>\n Earthy mushrooms, bold red wine, and saut\u00e9ed bacon blend beautifully in this savory Omaha Steaks Red Wine & Mushroom Finishing Sauce<\/a>, tying your whole holiday meal together.<\/p>\n To prepare, place the sauce pouch in a small bowl of hot tap water and let it thaw for 18-20 minutes. Once thawed, pour the sauce into a small saucepan and heat over low-to-medium heat. Whisk occasionally for three to four minutes or until the sauce begins to simmer.<\/p>\n Spoon over the chateaubriand and serve with the Parmesan acorn squash for a holiday meal that feels rich, cozy, and complete.<\/p>\nTools You\u2019ll Need Before You Start<\/strong><\/h4>\n
\n
How to Make Rosemary-Garlic Chateaubriand With Red Wine Mushroom Sauce & Roasted Parmesan Acorn Squash <\/strong><\/h2>\n
1. Gather ‘Round: The Roast That Steals the Show <\/strong><\/h3>\n
While the chateaubriand comes to temperature, preheat your oven to 250 degrees Fahrenheit. Heat an extra-large cast-iron pan over medium-high heat until hot. Add the grapeseed oil and sear the roast on all sides for about 45 seconds until browned. Add butter to the pan and baste the roast with it for about 15 seconds per side.<\/p>\n2. Squashing Expectations: A Parmesan Twist Everyone Will Crave<\/strong><\/h3>\n
3. Pour It On: The Sauce That Brings the Holiday Magic
<\/strong><\/h3>\n<\/div>
![\"Holiday](\"https:\/\/blog-content.omahasteaks.com\/wp-content\/uploads\/2025\/07\/Rosemary-Garlic-Chateaubriand-With-Red-Wine-Mushroom-Sauce-and-Roasted-Parmesan-Acorn-Sqush-CR-150x150.jpg\")
<\/div>\n\t