In a small bowl, mix together salt, sugar, pepper, onion salt & minced garlic. This is your mushroom seasoning.
1/4 tsp coarse sea salt, 1/2 tsp sugar, 1/2 tsp black pepper, 3/4 tsp onion salt, 2 tsp dried minced garlic
Melt 3 tbsp butter and 2 tbsp olive oil in a large, deep dish skillet over medium-high heat. Add sliced mushrooms and sliced onions. Sprinkle mushroom seasoning over mushrooms. Sauté until mushrooms are tender and caramelized.
3 tbsp butter salted, 2 tbsp olive oil, 8 ounces mushrooms, 1 yellow onion
Add 2 tbsp water to pan and stir all the bits off the bottom of the pan.
2 tbsp water
Remove JUST the mushrooms & onions (not any extra sauce) to separate bowl or pan and cover to keep warm.
Season the beef sirloin tips with TR steak seasoning, ensuring they are well-coated.
1 pound sirloin beef tips, 2 tsp Texas Roadhouse steak seasoning
To the same large skillet, add 1 tbsp butter. When butter is melted, add steak tips. (You can grill but it’s so quick this is easier.)
1 tbsp butter
Sear steak tips for about 1-2 minutes on each side, or until they are nicely browned. Don’t overcook! Steak bites only take a couple of minutes to cook to medium rare. Remove from the grill, set aside and keep warm.
In the same pan, add remaining butter.
2 tbsp butter
Once butter is melted, whisk in flour and cook for 1-2 minutes.
2 tbsp all-purpose flour
Gradually add water, Worcestershire, bouillon and salt to the flour mixture, stirring constantly until the mixture thickens into a smooth sauce.
1 ½ cups water, 2 tsp Worcestershire sauce, 1 tsp Better Than Bouillon beef base, 1/4 tsp coarse sea salt
Simmer the sauce for about 5 minutes to thicken and reduce.
Plate mushrooms and onions and top with beef tips and cover with gravy. Serve with a dollop of sour cream and a side of mashed potatoes or Texas Roadhouse seasoned rice.