01 -
Place chicken thighs in the Instant Pot, sprinkle with garlic powder, sea salt, and pepper, and pour water over the chicken. Seal the Instant Pot and cook on high pressure for 20 minutes. Manually release the pressure. Transfer the chicken to a cutting board, discard the cooking liquid, and shred the chicken using two forks.
02 -
Preheat the oven to 375°F and grease a 9x13-inch casserole dish generously.
03 -
Heat olive oil in a skillet over medium-high heat. Add diced onion, season with salt, and sauté until translucent. Add thawed mixed vegetables and sauté for an additional 1-2 minutes.
04 -
Beat cream cheese on medium-high speed until smooth. Mix in sour cream, cottage cheese, condensed cream of chicken soup, ¾ cup shredded cheddar cheese, and ranch seasoning mix. Fold in shredded chicken and sautéed vegetables.
05 -
In a food processor, pulse Ritz crackers until crumbled. Add melted butter and pulse until fully combined.
06 -
Spread the chicken mixture evenly into the prepared baking dish. Sprinkle the remaining ¾ cup shredded cheddar cheese over the top, followed by the Ritz cracker topping.
07 -
Bake the casserole in the preheated oven for 35 minutes or until bubbly and the topping is golden brown.