Potato Tomato Bake - Flashback Friday

Looking for a different potato recipe?  For Flash Back Friday I'm hoping you'll try
 this Potato Tomato Bake It is simply made and so delicious.

My favourite kind of comfort food.

• 2 medium onions
• 1 tablespoon olive oil
• 1 tablespoon butter
• 4 medium potatoes
• 2-3 fresh tomatoes
• 1 cup grated Gruyre or Swiss Cheese
• salt, pepper, basil

1. Cut onion in half and slice lengthwise from stem.
2. Heat butter and olive oil in a frying pan and saute onions over medium heat until soft and caramelized.
3. Spread the caramelized onions in a layer in the bottom of a buttered glass flan dish, or 9" cake pan.
4. Thinly slice potatoes and tomatoes.
5. On top of onions, lay potatoes and tomatoes closely together in an overlapping circular pattern, alternating 2 or 3 thin slices of potato with 1 slice of tomato, seasoning lightly with salt, pepper and basil as you go around. Continue overlapping until bottom of dish is covered.
6. Sprinkle with cheese and bake in 350 F degree oven for 50 minutes or until potatoes are tender and top is browned.
7. Cut into wedges to serve and enjoy!