01 -
Heat oven to 190°C (375°F).
02 -
Heat olive oil over medium heat. Add onion along with a couple large pinches of salt and pepper. Cook, stirring frequently, for 4 minutes.
03 -
Add garlic, Italian seasoning, rubbed sage, and a couple pinches of salt and pepper. Cook for 1 minute, stirring frequently.
04 -
Add butter to the pan and stir until it melts. Sprinkle flour over the mixture and stir to combine. Cook for another minute or so, stirring frequently.
05 -
Slowly stir in chicken stock until well combined, deglazing the bottom of the pan and scraping all the flavorful bits off. Then stir in heavy cream and mix until well combined. Heat for 1-2 minutes, stirring occasionally, until it thickens slightly and becomes creamy.
06 -
Add shredded chicken, frozen peas and carrots, and a couple pinches of salt and pepper to the pan and stir to combine. Cook for about a minute.
07 -
Spread shredded cheddar cheese in an even layer over the meat and vegetables. Then arrange tater tots in a single layer on top.
08 -
Bake, uncovered, for 45 minutes or until the tater tots are crispy and the casserole is warmed through and bubbling around the edges. Broil for a couple minutes if desired to get the tater tots extra crispy on top.
09 -
Remove from oven and let sit for 5 minutes before serving. Garnish with fresh chopped parsley.