Place green beans and carrots in 1 inch bowl of boiling water. Cover, and cook until tender but still firm. Drain.

Melt butter in a large skillet over med heat. Saute onions and mushroom until almost tender. Reduce heat, cover and simmer 3 minutes. Stir in green beans, carrots, salt, seasoned salt, garlic salt, pepper. Cover and cook for 5 minutes over medium heat.