Step 1: Preheat the Oven and Get Ready - Start by preheating your oven to 400 degrees. I always say this step first because there is nothing worse than having everything ready and realizing the oven is still cold. Grab a 9 by 13 baking dish and set it on the counter so you are ready to build your meal.
Step 2: Season the Chicken - Place your cubed chicken in a bowl and sprinkle in the salt, pepper, garlic powder, and ranch seasoning. Use your hands or a spoon to toss everything together until the chicken is evenly coated. This is where the flavor starts, so take a moment to make sure every piece gets some seasoning.
Step 3: Add the Tortellini Base - Pour the refrigerated tortellini into your baking dish and spread it out into an even layer. Think of this as the foundation of the meal. You want it nice and even so everything cooks properly.
Step 4: Layer the Chicken - Scatter the seasoned chicken pieces evenly over the tortellini. Try not to pile everything in one spot. Spreading it out helps everything cook at the same pace and ensures every bite has a little bit of everything.
Step 5: Pour the Sauce Mixture - In a small bowl, mix the Alfredo sauce and milk together, then pour it evenly over the chicken and tortellini. Make sure the pasta is mostly covered so it can absorb that creamy goodness while baking. This is what makes the dish so rich and comforting.
Step 6: Add the Bacon - Sprinkle the cooked and crumbled bacon over the top. I like to make sure it is spread out so you get a little crispy bite in every serving. This step always gets a smile from the kids when they see it going on.
Step 7: Cover and Bake - Cover the dish tightly with foil and place it in the oven. Let it bake for about 25 minutes. Covering it helps trap moisture so the tortellini cooks perfectly in the sauce instead of drying out.
Step 8: Add Cheese and Finish Baking - Carefully remove the foil and sprinkle the shredded mozzarella cheese over the top. Return the dish to the oven and bake for another 5 minutes until the cheese is melted and bubbly. This is the moment when it really starts to look like dinner.
Step 9: Garnish and Serve - Take the dish out of the oven and sprinkle chopped parsley over the top. Let it sit for a few minutes before serving so everything settles. Then scoop it onto plates and watch it disappear.