Asparagus Frittata

• 6 eggs
• 3 spears
• 1 tomato
• 270 gr asparagus spears (fresh)
• 280 ml pkg asparagus cook asparagus spears in a amount of boiling water (frozen cut fresh)
• 90 gr lo-fat cottage cheese
• 85 gr mushrooms (sliced fresh)
• 10 ml prepared mustard
• 1 gr salt
• 1 gr pepper