Keto Portobello Mushroom Burger
A keto portobello mushroom burger replaces the bun with grilled portobello caps — meaty, juicy, and zero flour. One burger comes in at 11.5g net carbs with a quarter-pound beef patty, cheddar, avocado, and all the fixings. Ready in 25 minutes. Portobello caps are the best low-carb bun swap because they actually hold together. Lettuce…
