01 -
First things first, get that oven preheating to 375°F (190°C), and grab a 9x13 inch baking dish. Give it a quick spray with cooking oil – saves you scrubbing later, trust me. Now, dice your chicken breasts into about 1-inch cubes. You want them pretty uniform so they cook evenly. While you're at it, chop your onion, carrots, and celery into small pieces, and mince that garlic. This is where I usually have all my little prep bowls out, making my counter look like a mad scientist's lab, but it keeps things organized!
02 -
Heat a tablespoon of olive oil in a large oven-safe pot or Dutch oven over medium-high heat. Toss in your chicken cubes and cook them until they're lightly browned on all sides, about 5-7 minutes. They don't need to be cooked through, just get some color. Transfer the chicken to a plate for a moment. Now, add a little more oil if needed, then throw in your chopped onion, carrots, and celery. Sauté them for about 5-7 minutes until they start to soften and get fragrant. Oh, that smell! It just screams comfort food.
03 -
Add the minced garlic to the veggies and cook for another minute until fragrant – don't let it burn, that's a sad smell. Sprinkle in the flour and stir constantly for about 1-2 minutes to cook out that raw flour taste. Slowly whisk in the chicken broth, scraping up any browned bits from the bottom of the pot. Bring it to a simmer, letting it thicken slightly. Then, pour in the heavy cream and stir in your dried thyme, rosemary, and oregano. Let it bubble gently for a few minutes until it's lovely and thick. Season with salt and pepper to taste here. I always taste it at this stage; it’s critical for a truly savory casserole.
04 -
Now for the fun part! Cook your rotini pasta according to package directions, but *only* to al dente – maybe even a minute or two less than recommended. Remember my crunchy pasta disaster? Drain it well. Add the browned chicken back into the pot with the creamy herb sauce and stir in the cooked pasta and about half of your grated Parmesan cheese. Give it a good mix to make sure everything is coated in that glorious sauce. This is where the kitchen starts smelling absolutely divine, honestly, it's my favorite part.
05 -
Pour the entire mixture into your prepared 9x13 inch baking dish. Make sure it's spread out evenly. Sprinkle the remaining Parmesan cheese over the top. Sometimes I add a little extra cheese because, well, cheese! Cover the dish loosely with aluminum foil. Pop it into your preheated oven and bake for 20 minutes. The foil helps keep the casserole moist and prevents the top from browning too quickly. You want everything to heat through and meld together beautifully.
06 -
After 20 minutes, carefully remove the foil and bake for another 15-20 minutes, or until the top is golden brown and bubbly. The sauce should be thick and the chicken fully cooked. If you're unsure, a quick peek at a chicken piece will tell you. Once it's out of the oven, let the casserole rest for about 5-10 minutes. This little break helps the sauce set up and prevents it from being too runny when you scoop it. Garnish with fresh chopped parsley if you're feeling fancy. Then, dish it out and enjoy that incredible Savory Baked Herb Chicken Casserole!