First things first, get a pot of water boiling for your pasta. Cook those egg noodles according to the package directions until they're perfectly al dente. Once they're done, drain them well and set them aside. Don't rinse them!
While your pasta is doing its thing, grab a large pot or a deep skillet. Melt the butter over medium heat. Add your diced chicken and cook it until it's beautifully browned and cooked through. You want those little golden bits! Remove the chicken from the pot and put it on a plate for a moment.
Now, toss the diced onion into the same pot. Cook them until they're soft and translucent, which should take about 3-5 minutes. Scrape up any tasty brown bits from the chicken while you stir!
Add the minced garlic to the pot and cook for just one minute more, until you can smell that amazing garlic aroma. Don't let it burn!
Stir in the frozen mixed vegetables. Cook them for 5-7 minutes, stirring occasionally, until they're tender-crisp. They'll finish cooking in the sauce.
Pour in the cream of mushroom soup, cream of chicken soup, and the milk. Give it a good stir. Now, add the chicken bouillon powder, paprika, salt, and pepper. Mix everything until it's smooth. Bring the sauce to a gentle simmer, stirring often.
Bring the cooked chicken back into the pot with the sauce and veggies.
Finally, add the drained cooked egg noodles to the pot. Gently stir everything together until the pasta is completely coated in that luscious, creamy sauce.
Heat it through for just a few minutes, making sure everything is hot and cozy.
Serve immediately! Grab your bowls and dig in.