A gas grill sears filet mignon quickly when you preheat it on high for at least fifteen minutes. Learning how to cook filet mignon on a gas grill is simpler than you think, and it delivers a steakhouse-quality meal right in your backyard. This guide will walk you through every step, from choosing the right cut to resting the meat perfectly.
Why Choose A Gas Grill For Filet Mignon
Gas grills offer precise temperature control, which is key for a tender cut like filet mignon. You can get a hard sear without overcooking the interior. Plus, it’s faster than charcoal and easier to clean up after.
Filet mignon is lean, so it dries out quickly if you cook it too long. A gas grill lets you manage heat zones, giving you a crusty outside and a juicy center.
What You Need Before You Start
Gather these tools and ingredients first. It makes the process smoother.
- Filet mignon steaks (1.5 to 2 inches thick)
- Olive oil or avocado oil
- Kosher salt and black pepper
- Garlic powder or fresh garlic (optional)
- Butter for basting
- Fresh herbs like thyme or rosemary
- Tongs
- Instant-read meat thermometer
- Aluminum foil
How To Cook Filet Mignon On A Gas Grill: Step-By-Step
Now we get into the core process. Follow these steps for perfect results every time.
Step 1: Prep The Steaks
Take your filet mignon out of the fridge 30 to 45 minutes before grilling. This lets them come to room temperature, which helps them cook evenly.
Pat the steaks dry with paper towels. Moisture is the enemy of a good sear. Season generously with kosher salt and black pepper on all sides. You can add garlic powder or other spices now, but keep it simple.
Drizzle a little oil over each steak and rub it in. This helps the seasoning stick and prevents sticking to the grill.
Step 2: Preheat The Grill Properly
Turn all burners to high and close the lid. Let the grill heat up for at least 15 minutes. The internal temperature should reach 500°F to 550°F (260°C to 288°C).
A hot grill is essential for a good sear. If you don’t preheat long enough, the steaks will stick and steam instead of browning.
Step 3: Sear The Filet Mignon
Once the grill is hot, place the steaks directly over the flames. Leave about 2 inches of space between each one. Close the lid.
Sear for 3 to 4 minutes without moving them. You want a deep brown crust. Flip the steaks using tongs, not a fork, to avoid piercing the meat.
Sear the other side for another 3 to 4 minutes. For a 1.5-inch steak, this gives you a nice medium-rare finish after the next step.
Step 4: Move To Indirect Heat
After searing, turn off the burner directly under the steaks or move them to a cooler part of the grill. If you have a two-burner grill, turn one burner off and keep the other on medium.
Close the lid and let the steaks cook indirectly until they reach your desired doneness. This gentle heat finishes the inside without burning the outside.
Use your instant-read thermometer to check. Insert it into the thickest part of the steak.
- Rare: 120°F to 125°F (49°C to 52°C)
- Medium-rare: 130°F to 135°F (54°C to 57°C)
- Medium: 140°F to 145°F (60°C to 63°C)
- Medium-well: 150°F to 155°F (66°C to 68°C)
- Well-done: 160°F+ (71°C+)
For filet mignon, medium-rare is the sweet spot. The meat stays tender and juicy.
Step 5: Butter Baste For Extra Flavor (Optional)
During the last minute of indirect cooking, add a pat of butter and some fresh herbs to the top of each steak. Close the lid briefly to let the butter melt.
You can also use tongs to hold a herb sprig and brush the melted butter over the steaks. This adds richness and aroma.
Step 6: Rest The Steaks
Remove the filet mignon from the grill and place them on a cutting board or plate. Tent loosely with aluminum foil. Let them rest for 5 to 7 minutes.
Resting allows the juices to redistribute throughout the meat. If you cut too soon, the juices run out and the steak turns dry.
After resting, serve immediately. Slice against the grain if you prefer, but filet mignon is often served whole.
Common Mistakes To Avoid
Even experienced cooks make errors with filet mignon. Here are the most common ones and how to skip them.
Not Preheating Long Enough
If the grill isn’t hot, you won’t get a sear. The steak will stick and cook unevenly. Always preheat for at least 15 minutes on high.
Overcooking The Filet
Filet mignon is lean and cooks fast. Use a thermometer to avoid guesswork. Pull the steak off about 5°F below your target temp, as it will continue cooking while resting.
Using A Fork To Flip
Piercing the steak with a fork releases juices. Always use tongs to handle the meat gently.
Skipping The Resting Time
Cutting into a hot steak immediately lets the juices flood out. Resting is non-negotiable for a juicy result.
How To Season Filet Mignon For The Grill
Seasoning is simple but important. Filet mignon has a mild flavor, so you want to enhance it, not overpower it.
Basic Salt And Pepper
Kosher salt and fresh-cracked black pepper are all you need. Apply them generously just before grilling. Let the salt sit for about 15 minutes if you have time—it helps draw out moisture and then reabsorb it, seasoning the meat deeper.
Adding Garlic And Herbs
Garlic powder, onion powder, or dried thyme work well. Fresh garlic can burn on the grill, so use it sparingly or add it during the butter baste step.
Rosemary and thyme are classic pairings. Place a sprig on each steak during the last minute of cooking for a subtle flavor.
Marinades: Use With Caution
Acidic marinades can break down the tender texture of filet mignon. If you marinate, keep it short—30 minutes max. A simple oil, soy sauce, and garlic mix works.
For most people, dry seasoning is better. It lets the beef flavor shine.
What To Serve With Grilled Filet Mignon
Filet mignon pairs well with light sides that don’t compete with the meat. Here are some ideas.
- Grilled asparagus or green beans
- Roasted potatoes or mashed potatoes
- A simple green salad with vinaigrette
- Sautéed mushrooms
- Crusty bread with butter
Keep the sides simple so the steak remains the star. A glass of red wine like Cabernet Sauvignon or Merlot complements the beef nicely.
Temperature Guide For Filet Mignon On Gas Grill
Using a thermometer is the best way to get consistent results. Here’s a quick reference for doneness levels.
| Doneness | Internal Temp | Grill Time (approx) |
|---|---|---|
| Rare | 120-125°F | 6-8 minutes total |
| Medium-rare | 130-135°F | 8-10 minutes total |
| Medium | 140-145°F | 10-12 minutes total |
| Medium-well | 150-155°F | 12-14 minutes total |
| Well-done | 160°F+ | 14+ minutes total |
These times are for 1.5-inch steaks. Thicker cuts need more time. Always rely on the thermometer, not the clock.
Frequently Asked Questions
Can I Cook Filet Mignon Directly From The Fridge?
It’s better to let it sit at room temperature for 30 minutes. Cold steaks cook unevenly on the grill.
Should I Oil The Grill Grates Or The Steak?
Oil the steak, not the grates. This prevents flare-ups and helps the seasoning stick.
How Do I Get Grill Marks On Filet Mignon?
Place the steak at a 45-degree angle to the grates. After 2 minutes, rotate it 90 degrees without flipping. This creates crosshatch marks.
Can I Cook Frozen Filet Mignon On A Gas Grill?
It’s not recommended. Thaw the steaks in the fridge overnight first. Frozen meat cooks unevenly and won’t sear properly.
What If My Grill Doesn’t Have A Lid?
A lid is important for even cooking. If your grill is open, you’ll need to flip the steaks more often and watch the heat closely. Consider using a grill with a lid for best results.
Final Tips For Perfect Filet Mignon Every Time
Practice makes perfect. Don’t be discouraged if your first attempt isn’t ideal. Here are a few last pointers.
Let the grill preheat fully. Use high heat for searing and lower heat for finishing. Always rest the meat. And invest in a good instant-read thermometer—it’s the most important tool for this dish.
Filet mignon is a special cut, but it doesn’t require complicated techniques. With a gas grill and these steps, you can cook it like a pro. Enjoy your meal.