Grandma Smith's Spinach Artichoke Dip

20 oz frozen chopped spinach-thawed and drained,

2 t cumin,

2 t chili powder

1 t garlic powder

2 8 oz pkg cream cheese, softened

14 oz artichoke hearts drained and chopped

2 10 oz cans Rotel tomatoes

 2 cups grated Monterrey cheese

1 cup grated Parmesan cheese

Oven at 250 till bubbles, browns, melts. About 30 min? Serve with chips, celery, veggies.