Cheesy Tomato Basil Chicken Breasts

• 3 chicken breasts skinned in h (whole boneless cut)
• 300 gr cubed ripe tomatoes
• 190 gr tomato paste
• 110 gr bread crumbs (fresh)
• 80 gr mozzarella cheese (cut into)
• 70 gr butter
• 40 gr onion (chopped)
• 14 gr parsley (chopped fresh)
• 6 gr garlic (minced fresh)
• 2 gr basil leaves