Prep the Protein: Toss seitan or tofu with olive oil, garlic powder, paprika, salt, and pepper. Let it marinate for 10 minutes.
Sear the “Chicken”: Heat a skillet and cook each side for 5–6 minutes until golden and crispy. Remove and set aside.
Build the Sauce: In the same pan, melt vegan butter. Add onions and garlic, cooking until fragrant and slightly caramelized.
Thicken It Up: Sprinkle flour and whisk until smooth. Gradually add oat milk and broth, stirring constantly to avoid lumps.
Flavor the Cream: Stir in nutritional yeast, mustard, thyme, and lemon juice. Let the sauce simmer until velvety and luscious.
Smother Like You Mean It: Add the seitan or tofu back into the pan, coating it in creamy perfection. Simmer for 5 minutes.
Serve & Slay: Garnish with parsley and black pepper. Serve hot with rice, mashed potatoes, or biscuits.