Roasted vegetable sauce instructions: Prepare a baking pan: Place a sheet of parchment paper on a baking pan.
Prepare vegetables: Cut 4 tomatoes in half, cut 1 red pepper in half, cut 1/2 of an onion, 3 garlic cloves, and cut 1 jalapeno in half, and place the vegetables face down on the prepared baking sheet.
Top the vegetables off with salt and broil at 500°F for 25-30 minutes.
Blend the vegetables: Remove the roasted vegetables from the oven and allow them to cool. To a blender add the heavy cream, and the roasted vegetables. Blend until everything is blended well.
Preheat the Oven: Preheat your oven to 375°F (190°C).
Prepare the chicken seasoning: In a non-stick saucepan, melt the butter, add the garlic, and spices.
Prepare the Chicken: Spray a baking dish with olive oil. Place your chicken in the dish and pour the garlic butter over the chicken, on both sides. Bake the chicken at 375°F (190°C) for 40-45 minutes, or until the chicken is cooked through (with an internal temperature of 165°F or 74°C)
Saute the Garlic and Onion Warm up a wok or skillet add the olive oil, add the minced garlic and finely chopped onion. Sauté for about 2-3 minutes until they become fragrant, and the onion is translucent.
Pour in the roasted vegetable sauce. Add Spinach: Add the chopped spinach to the skillet. Cook and stir for a few minutes until the spinach wilts. Season with salt and pepper. Once the chicken is done. Pour the chicken broth from the baked chicken, from the dish into the sauce.
Pour the Creamy Spinach Sauce Over the Chicken: Pour the creamy spinach sauce over the baked chicken. Top the dish off with cheese. I used a mixture of Monterey jack, and cheddar cheese. Bake: Place the dish in the stove and bake at 350 °F for 10-15 minutes. Until the cheese is bubbly and golden brown.
Garnish and Serve: If desired, garnish with freshly chopped parsley for a pop of color and flavor.
Serve your Cheesy Cream of Spinach Chicken hot, either directly from the dish or plated alongside your favorite side dishes.