Slow-Cooked Keto Cube Steak with Caramelized Onion Gravy

By AislePrompt Editorial · Published 2026-04-07 · Updated 2026-04-07

Tender cube steak slow-cooked in a rich onion gravy, bursting with flavor and perfect for a comforting weeknight meal. This American-inspired slow-cooker recipe (keto), ready in about 255 minutes, pairs cube steak, avocado oil, yellow onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 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 cube steak
• 2 tbsp avocado oil
• 1 large yellow onion
• 1 cup beef broth
• 2 tbsp Worcestershire sauce
• 1 tsp dried thyme
• 1/2 tsp salt
• 1/4 tsp black pepper
• 1/4 cup almond flour
• 1/4 cup heavy cream

The slow cooker we’d leave this in all day → Best Slow Cookers in 2026: Top Picks + Buying Guide

Instructions

1. Step 1: Place 1 lb cube steak in a slow cooker, then add 2 tbsp avocado oil, 1 large yellow onion (thinly sliced), 1 cup beef broth, 2 tbsp Worcestershire sauce, 1 tsp dried thyme, 1/2 tsp salt, and 1/4 tsp black pepper.
2. Step 2: Cover and cook on low for 4 hours until the steak is tender and the onions are caramelized.
3. Step 3: Remove the steak and set aside. Strain the cooking liquid into a saucepan, discarding the solids.
4. Step 4: Whisk 1/4 cup almond flour into the strained liquid, then cook over medium heat, stirring constantly, until the sauce thickens (about 3-4 minutes).
5. Step 5: Stir in 1/4 cup heavy cream and simmer for 1 minute until heated through.
6. Step 6: Slice the steak and serve with the thickened gravy.