Easy green bean casserole

pkg, oil, stick butter, large onion, chopped, can corn, spinach, can sliced carrots, drained, medium fresh onions, cooked carrots, mashed approximately 12, cans whole canned corn, drained

• Broccoli Casserole,
• Chinese Spinach,
• Zucchini Squash Casserole,
• Shrimp Casserole,
• Baked Corn,
• Gourmet Spinach,
• Pineapple Glazed Carrots,
• Onion Casserole,
• Carrot Souffle,
• Corn Pudding