Nana's Tuna Casserole Surprise

Ingredients (7)

• ✓ 1 (12 ounce) can chunk light tuna in water, drained
• + 2 cups multigrain flake cereal add to pantry
• + ¼ cup minced onion add to pantry
• + 1 (10 ounce) can condensed cream of mushroom or celery soup, undiluted add to pantry
• + 2 tablespoons extra virgin olive oil add to pantry
• + 1 ½ cups shredded Swiss cheese add to pantry
• + ½ cup dry roasted peanuts add to pantry