Mushroom and Beef Sauté with Garlic Butter
Quick, rich pan-seared beef strips with earthy mushrooms and aromatic garlic butter for a comforting keto dinner. This american-inspired keto (high-protein) ready in about 27 minutes pairs Grass-fed beef sirloin, Cremini mushrooms, Unsalted butter for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 385 calories and feeds 1, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 6 oz Grass-fed beef sirloin
- 1 cup Cremini mushrooms
- 2 tbsp Unsalted butter
- 2 Garlic cloves
- 1 tsp Fresh thyme
- 1 tsp Olive oil
- 1/4 tsp Sea salt
Instructions
- Step 1: Slice 6 oz grass-fed beef sirloin against the grain into 1/4-inch strips. Pat dry with paper towels. Heat 1 tsp olive oil in a cast-iron skillet over medium-high heat until smoking, then add beef strips in a single layer, searing for 2 minutes per side until browned but still pink inside; transfer to a plate.
- Step 2: Add 1 cup sliced cremini mushrooms and 2 minced garlic cloves to the same skillet with 1 tbsp butter. Sauté over medium heat for 4-5 minutes until mushrooms are golden and release liquid, stirring occasionally.
- Step 3: Return beef to skillet with 1 tbsp butter, fresh thyme, and 1/4 tsp sea salt. Toss to coat and heat through for 1 minute until butter is melted and fragrant.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Mushroom and Beef Sauté with Garlic Butter take to make?
Total time is about 27 minutes (15 min prep + 12 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover Mushroom and Beef Sauté with Garlic Butter?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep grass-fed beef sirloin from drying out.
Can I substitute ingredients in Mushroom and Beef Sauté with Garlic Butter?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Mushroom and Beef Sauté with Garlic Butter for a different number of people?
The recipe is written for 1 servings. Multiply each ingredient by (your serving target / 1). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
Is Mushroom and Beef Sauté with Garlic Butter high-protein?
Yes — this recipe is tagged high-protein based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.
What others are saying
- ★★★★☆
Almost perfect — just needed a squeeze of lemon at the end.
- ★★★★☆
Almost perfect — just needed a squeeze of lemon at the end.
- ★★☆☆☆
Didn't come together the way I expected. Flavors were flat.
