Auntie's Vegetable Casserole

From my Great Aunt Alta's recipe collection. Aunt Alta was a member in a local ladies "gourmet" club and this is one of the recipes she made for one of the club dinners.

• Ready In: 2 hrs 10 mins
• Serves: 8-10

Ingredients

• 2 (10 ounce) boxes  frozen cut green beans (or 1 green, one yellow)
• 2  cups canned tomatoes
• 1⁄2 cup  sliced red onion
• 1 1⁄2 cups  sliced carrots
• 2  cups celery, sliced
• 3⁄4 cup green bell pepper, seeded & sliced (optional)
• 4  tablespoons unsalted butter
• 1  tablespoon granulated sugar
• 3  tablespoons minute tapioca
• 1⁄8 teaspoon pepper
• 2 1⁄2 teaspoons salt

Directions

1. Mix all except butter together and pour into a covered casserole large enough to hold everything.
2. Dot with butter, cover, and bake in a preheated 350 F oven for 2 hours OR cook on lowest heat in a covered suacepan for 40 minutes, then pour into a covered casserole and bake 1 hour.