Tater Tot Hotdish - C.F. Burger Creamery

Ingredients

• 1 tbsp. Olive Oil
• 1 medium Yellow Onion (diced)
• 1 tbsp. Kosher Salt (divided)
• 3 cloves Garlic (minced)
• 2 lbs. Ground Sirloin
• 1 tsp. Seasoned Salt
• to taste Freshly Ground Pepper
• 2 tbsp. All-Purpose Flour
• 2 tsp. Cornstarch
• 1 tbsp. Worcestershire Sauce
• 1½ cups Beef Stock
• 1 cup CF Burger Creamery Half & Half
• 1 lb. Frozen Mixed Vegetables
• 1 cup Shredded Sharp Cheddar (divided)
• Frozen Tater Tots
• Fresh Chives (for serving)