Slow-Cooked Beef Stew with Mushrooms and Cauliflower Mash

By AislePrompt Editorial · Published 2026-07-10 · Updated 2026-07-10

A hearty slow-cooked beef stew rich with mushrooms served alongside creamy cauliflower mash, perfect for a low-carb keto meal. This American-inspired keto recipe (low carb), ready in about 500 minutes, pairs beef chuck, cubed, olive oil, yellow onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 480 calories and feeds 4, so it slots cleanly into a low-carb week and pairs well with cauliflower rice or roasted green vegetables. 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

• 1 lb beef chuck, cubed
• 2 tbsp olive oil
• 1 medium, diced yellow onion
• 3 minced garlic cloves
• 8 oz sliced button mushrooms
• 2 cups beef broth
• 2 tbsp tomato paste
• 1 tsp dried thyme
• 1 tsp salt
• 1/2 tsp black pepper
• 4 cups cauliflower florets
• 3 tbsp unsalted butter
• 1/4 cup heavy cream

Dutch ovens worth buying for low-and-slow cooking → Best Dutch Ovens for 2026: Top Picks + Buying Guide

Instructions

1. Step 1: Heat 2 tbsp olive oil in a large skillet over medium-high heat. Add 1 lb cubed beef chuck and brown on all sides for 5-6 minutes, then transfer to a slow cooker.
2. Step 2: In the same skillet, sauté 1 diced medium yellow onion and 3 minced garlic cloves for 3-4 minutes until translucent and fragrant, then add 8 oz sliced button mushrooms and cook another 5 minutes until softened and browned. Transfer mixture to slow cooker.
3. Step 3: Add 2 cups beef broth, 2 tbsp tomato paste, 1 tsp dried thyme, 1 tsp salt, and 1/2 tsp black pepper into the slow cooker with beef and veggies. Stir to combine, cover, and cook on low for 7-8 hours until beef is tender.
4. Step 4: Meanwhile, steam 4 cups cauliflower florets until very tender, about 10 minutes. Transfer to a blender or food processor and add 3 tbsp unsalted butter and 1/4 cup heavy cream. Blend until smooth and creamy.
5. Step 5: Serve the slow-cooked beef stew hot with a generous scoop of cauliflower mash on the side.