Cauliflower Marranca

• 2 lemons (whole)
• 2 heads cauliflower florets (cut)
• 1,800 ml water
• 475 gr long brown rice (grain)
• 450 gr cheddar cheese (shredded)
• 140 gr mushrooms
• 120 gr onions (red finely chopped)
• 80 ml olive oil
• 3 gr garlic (chopped)
• 1 gr basil (dried)