It's dinner time!

Ingredients

• 5 pounds ground beef
• ½ large onion, diced
• 1 tablespoon pumpkin pie spice
• 1 teaspoon dried thyme
• ½ teaspoon ground dried rosemary
• salt to taste
• 1 ¾ tablespoons Worcestershire sauce
• 1 tablespoon hot pepper sauce, or to taste
• 2 (10.75 ounce) cans condensed tomato soup
• 1 ½ (10.75 ounce) cans condensed cream of celery soup
• 1 (29 ounce) can pure pumpkin
• 40 hamburger buns