Vegan “Sausage” Mushroom Pasta - Monkey and Me Kitchen Adventures

Name: Vegan “Sausage” Mushroom Pasta - Monkey and Me Kitchen Adventures
Cuisine: American
Ingredients: Scale; 8 oz. cremini mushrooms, sliced; 2 Tablespoons tamari, divided; 1 cup yellow onions, small dice; 2 Tablespoons minced garlic; ¾ cup vegetable broth; ¼ cup unsweetened plain plant milk; ½ cup hot pasta water; 2 teaspoons white miso; 2 teaspoons tahini (optional); 3 Tablespoons nutritional yeast; 1 cup cooked brown lentils (optional); 3 cups fresh baby spinach, chopped (or greens of choice); 10 oz. GF penne pasta (or pasta of choice); ½ teaspoon garlic powder; ½ teaspoon onion powder; 1 ½ teaspoons dried thyme; 1 Tablespoon dried parsley; ½ teaspoon dried crushed fennel seeds (+/-); ½ teaspoon sea salt (+/-); 1/8 teaspoon black pepper (+/-); ½ to 1 teaspoon red pepper flakes (+/-); Other Optional; Chopped fresh parsley; Red pepper flakes