A bold keto twist on carne asada tacos — this recipe swaps traditional tortillas for grilled portobello caps that hold smoky, savory fillings like nature's own taco shells.
3/4lbskirt steak12 oz; sub: flank steak or sirloin strips
4large portobello mushroom capsstems removed; sub: thick zucchini boats or bell pepper halves
2poblano pepperssub: Anaheim or green bell pepper
2tbspavocado oilsub: olive oil or melted ghee
2tbsplime juicesub: apple cider vinegar
2garlic clovesminced; sub: 1/2 tsp garlic powder
1tspground cuminsub: smoked paprika
Salt & pepperto taste
Garnish: chopped cilantrodiced onion, sliced avocado; sub: crumbled queso fresco or jalapeño for heat
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Instructions
Marinate the steak, 15 min: Whisk oil, lime juice, garlic, cumin, salt, and pepper. Coat steak well and let sit at room temp for 15 minutes.
Prep the veggies: Slice poblanos in half lengthwise, remove seeds. Brush mushrooms and poblanos with oil and season lightly with salt.
Grill it all: Heat grill to medium-high. Grill steak 3–4 min per side, and grill mushrooms and poblanos until lightly charred, 5–6 minutes total.
Assemble the tacos: Slice steak thinly against the grain. Place steak strips and poblano slices into each grilled mushroom cap. Top with your choice of garnish.