Super Addictive Spinach dip

I got this off of a western family cream cheese box :) This recipe will make a 9 x 13 pan of this dip. I usually half it. It is really good Yumm :)

Ingredients
1 cup onion, diced
1 tablespoon olive oil
2 (14 1/2 ounce) cans Mexican-style tomatoes, drained and chopped
4 ounces diced green chilies, drained
1/2 cup frozen chopped spinach, thawed and drained
2 cups taco blend cheese, shredded
8 ounces cream cheese, softened
1 1/2 tablespoons red wine vinegar
Tabasco sauce

Directions
1.In large skillet, saute onions in oil till softened.Remove from heat. Add remaining ingredients to skillet and blend together.
2Pour into shallow 9 inch baking dish and bake till bubbly and lightly browned.30-40 minutes. Serve with tortilla chips.
3Note: I used an 8 ounce box of frozen, chopped spinach and pressed out as much liquid as possible. Also, the recipe did not specify oven temperature so I made it 375 degrees. Guess it would depend on your oven.