Preheat oven to 350º and grease a casserole dish with non-stick cooking spray.
Heat 1 tbsp. olive oil in a skillet.
Add garlic, mushrooms, and spinach. Cook until mushrooms have softened and spinach has wilted down.
Next, add the pasta, sausage, and spinach mixture to the casserole dish. Mix in artichoke hearts.
Add jar of Garlic Alfredo sauce and stir to combine.
Top pasta with shredded mozzarella and bake for 20-30 minutes, or until cheese has melted and the pasta is warmed through.
Fold cheese into the pasta bake making sure it's combined well.
Serve warm with crusty Italian bread.