Ricotta-stuffed Zucchini Flowers

• 20 zucchini flowers
• 1 onion
• 240 gr ricotta cheese
• 60 gr almonds (toasted)
• 40 gr italian asiago cheese (grated)
• 5 gr butter
• 4 gr basil (minced fresh)
• 3 gr seasoning salt
• 3 gr parsley (minced)
• 1 gr pepper (ground)