Jackie Clay's Canned Beef or Venison Stew

This is from Jackie Clay's blog. She's the very best source of canning wisdom.
Beef (or venison) Stew

5 pounds stew meat
1 Tbsp cooking oil
3 quarts cubed potatoes
2 quarts sliced or cut carrots
3 cups chopped celery
3 cups chopped onions
1 quart or more tomato sauce or stewed tomatoes (optional; may use water)
1½ Tbsp. salt
½ tsp. black pepper
Cut meat into 1-inch cubes; brown in oil. Combine meat, vegetables, and seasonings in large stockpot and cover with tomato sauce, tomatoes, or water and bring to a boil. Do not cook. Ladle hot stew into hot jars, leaving 1 inch of headroom. Remove any air bubbles. Wipe jar rim clean, put hot, previously simmered lid on jar and screw down ring firmly tight. Process pints for 75 minutes and quarts for 90 minutes at 10 pounds pressure.

*Note to self, thicken this after opening and reheating. Use arrowroot, flour or cornstarch.