The Ultimate Tater Tot Casserole with Ground Beef

Ingredients

• 1 tablespoon vegetable oil (15 ml)
• 1 pound ground beef (450g), 80/20 blend
• 1 medium yellow onion, chopped (about 1 cup) (150g)
• 1 green bell pepper, chopped (about 1 cup) (150g)
• 2 cloves garlic, minced
• 1 (10.75 ounce) can condensed cream of mushroom soup (300g)
• 1/2 cup milk (120 ml)
• 1/2 cup ketchup (120 ml)
• 1 tablespoon Worcestershire sauce (15 ml)
• 1 teaspoon dried Italian seasoning
• 1/2 teaspoon salt, or to taste
• 1/4 teaspoon black pepper, or to taste
• 1 (32 ounce) bag frozen tater tots (900g)
• 1 cup shredded cheddar cheese (100g) (optional)
• Chopped green onions for garnish (optional)