Ingredients
Ingredients for 
:
4 -5 large (2½ lbs) chicken breasts, cut into 1 -inch thick strips
Salt and Pepper to taste
1 cup all-purpose flour to coat the chicken
6 Tbsp olive oil, divided
1 pound fresh mushrooms, thickly sliced
1 medium onion, finely diced
3 garlic cloves, minced
Ingredients for the Sauce:
3 Tbsp unsalted butter
3 Tbsp all-purpose flour for the sauce
1½ cups chicken broth
1 Tbsp lemon juice
1 cup half and half (or ½ cup milk + ½ cup heavy cream)
Instructions
Season chicken with salt and pepper and dredge both sides in flour. Heat 3 Tbsp oil in a large skillet over medium/high heat. Once oil is hot, add chicken and saute until golden. Work in batches if needed so you don't crowd your pan. Don't worry about cooking the chicken through; it still needs to go in the oven. Transfer chicken to a 13x9 casserole baking dish.
Wipe down the skillet with a paper towel. Add 3 Tbsp oil along with sliced mushrooms and diced onions and saute until soft and golden. Add garlic and saute another 1-2 min. Spread mixture over the chicken.
In a medium saucepan (or in the same pan you've been using), melt 3 Tbsp butter. Whisk in 3 Tbsp flour until lightly golden (1-2 min).
Add 1½ cups chicken broth, 1 Tbsp lemon juice, ¼ tsp pepper, and whisk until smooth. Add 1 cup half & half and bring to a simmer. Season with salt and pepper to taste.
Pour sauce over the chicken and mushrooms. Cover with foil and bake at 350˚F for 45 minutes. Serve warm or hot over mashed potatoes, pasta or rice.!