Step 1

Preheat oven to 350˚F.

Step 2

Lightly grease a 9x13 baking dish with cooking spray and set aside.

Step 3

Heat olive oil in a large skillet set over medium high heat.

Step 4

Add cut up chicken to the hot oil; season with basil, salt, and pepper, and cook for 5 minutes, stirring occasionally.

Step 5

Add frozen spinach to the skillet and cook until spinach is thawed and chicken is cooked through; about 5 more minutes. NOTE: IF using thawed/fresh spinach, add it to the skillet only 2 minutes before the chicken is cooked through.

Step 6

Transfer chicken and spinach mixture to previously prepared baking dish.

Step 7

To the chicken, add sour cream, mayonnaise, and shredded cheddar.

Step 8

Season with paprika, garlic powder, and onion powder; mix and stir until thoroughly combined. If it looks dry, add just a bit more sour cream or mayo.

Step 9

Smooth out the top. Set aside.

Step 10

Crush the ritz crackers and put them in a bowl; drizzle melted butter over the crushed crackers and stir to combine.

Step 11

Sprinkle the crackers over the chicken mixture.

Step 12

Bake, uncovered, for 30 to 35 minutes, or until casserole is hot and bubbly on the sides.

Step 13

Remove from oven and let stand 10 minutes.

Step 14

Garnish with parsley.

Step 15

Serve.