Heat a splash of olive oil in a large pan over medium-high heat. Add the barley and toast for 2–3 minutes until fragrant.
Add the onion, mushrooms, garlic, and a pinch of salt. Sauté until the vegetables soften.
Stir in the white beans, stock, nutritional yeast, and fresh thyme sprigs. Cover, reduce to medium heat, and simmer for 10 minutes, stirring occasionally.
Once the liquid is absorbed, remove the thyme sprigs, season with additional salt if needed, and top with fresh thyme leaves.
Keyword beans, main-dishes-vegetarian, mushroom, one pot meal