Mushroom Gravy

Ingredients

• 1/2 yellow onion, diced
• 2 cups cremini or white button mushrooms
• 1/8 tsp. salt
• 1/4 tsp. freshly ground black pepper
• 2 cloves garlic, minced
• 1/2 tsp. fresh thyme or oregano
• 1 1/2 tbsp. whole-wheat pastry flour or whole-wheat flour
• 1/2 cup water