Flaghill Steak Bites

If you’ve never had high quality sirloin beef, you have to try Flaghill Ranch meat! The quality of their beef is so incredible. The marbling of their meat incomparable. We decided that these grass fed cows are a quality of beef in a league of their own.

And CUT’s steak bites? This recipe is the perfect pairing with renown Alberta, grass fed beef from Flaghill Ranch.

They are an Albertan family ranch bringing a sustainable product direct from the pasture to your table.. and we were excited! All of the beef is raised on their Alberta home ranch without the use of any added hormones.

Flaghill ranch truly cares about their cattle and ensures that the highest standards of animal welfare are met in their beef production.

Their grass fed cattle has decreased exposure to illness caused by confined living conditions and benefits from low stress handling. Their homegrown pasture raised beef operation is a unique balance of environmental stewardship, animal welfare and sustainability of the family farm model.

Flaghill Ranch is 100% operated by family. Managed by a fun and fearless father-daughter combo, their relationship nicely compliments the different roles on the ranch. They tell us “working with family has its own unique challenges but it’s amazing to share the same values for the land and the livestock”.

Our recipe for these sirloin Steak Bites exemplifies how incredible their beef truly is. Marinated in a red wine sauce first, the combination of mushrooms, onion and Flaghill grass fed beef are a union of perfection.

We’re so excited to share this recipe with you all. It’s just so delicious. Lol, our mouths are watering as we write this blog entry! Honestly, even the kids were stabbing bites of steak and eating them like candy. These sirloin bites will disappear fast!

A simple recipe we’re sure you’ll keep on repeat, it serves amazing for a family dinner or appetizer at your next backyard BBQ. It doesn’t require a ton of prep, just allow yourself time for the meat to marinate.

The marinade infuses the beef with delicious flavours! Be sure to allow the meat to marinate for at least 8-10 hours before cooking, or even a day before.

After your meat has marinated and you’re ready to cook, prepare your mushrooms and onions. Chop these veggies into large bite-sized chunks. Melt the butter and caramelize the mushrooms and onion in a large saucepan.

This is important!!…When cooking the marinated beef, you don’t want to over cook the sirloin. To prevent this from happening, remove the meat from the marinade and pour just the liquid with the mushrooms and onion first.

Once the marinade liquid has reduced, the last ingredient to cook is the marinated steak. With high cooking temperatures, sear your beef first. This will caramelize the natural sugars in the meat and form a rich brown crust on the surface of the beef.

After your beef is seared, go ahead and simmer the steak bites in the mushroom/onion reduction. Again, don’t over cook your meat! Only simmer for a few more minutes to reach your desired wellness of beef. We suggest cooking your steak bites more on the ‘rare’ side. Trust us.

Steak bites

Recipe by cutcookingCourse: Main, Red MeatCuisine: CanadianDifficulty: Easy


Prep time


Cooking time


Marinating Time



Perfect for a main meal or your next backyard appetizer. Tender and juicy, these steak bites are infused with flavours of red wine, onion and mushrooms. We promise you’ll want to make extra, they always seem to disappear!


  • Beef Marinade
  • 2 Flaghill sirloin steaks, weighing approximately 6-7 oz. or 200g each

  • 1 cup full body red wine

  • 1/4 cup gluten-free soya sauce

  • 6 whole garlic cloves, peeled

  • 1 1/2 tsp pepper

  • Mushroom and Onion reduction
  • 3 cups combined whole white and crimini mushrooms, bite sized (trim stems if long)

  • 1 large onion, chopped in bite-sized larger chunks

  • 3-4 cloves of garlic, minced

  • 1/4 cup butter

  • Blue Cheese Dressing (Optional)
  • https://cutcooking.com/blue-cheese-dressing/


  • Cut sirloin steak in large bite sized chunks and add to medium sized bowl.
  • Prepare the rest of the marinade with beef and cover bowl with lid if possible or plastic wrap. Set in fridge for 8-10 hours. Stir once or twice if possible.
  • Melt butter in large saucepan on medium heat. Add onions and stir well.
  • Turn heat to medium-low, and cook approximately 5 minutes until onions golden and translucent.
  • Add mushrooms and garlic and continue to simmer on low for another 5 minutes with lid on saucepan.
  • Separate the meat from marinate using a slotted spoon.
  • Remove saucepan lid, pour marinade liquid and whole garlic cloves into simmering mushroom and onion mixture.
  • Turn heat to medium high and bring everything to a boil, reduce liquid for additional 5 minutes, stirring well.
  • Add beef bites to sear. Toss meat in pan to allow all sides of meat to form a brown outer crust. Approximately 2 minutes.
  • Replace lid and simmer all ingredients approximately 5 more minutes until beef is at desired wellness.
  • If desired, pour the blue cheese dressing from the jar in the fridge and definitely pour a glass of wine. Sneak a few bites first before telling your family dinner is ready… These steak bites disappear!
    Stacey and Meg

This recipe can be enjoyed absolutely on its own. However, if you love to ‘dip’, go ahead and try our Blue Cheese dressing. The combination of CUT’s Steak Bites using Flaghill beef dipped in a Blue cheese, is literally mind blowing. Truth. Ha! It’s that good.