Cook Lentils: Place washed red lentils and 2 1/2 cups of water in a medium pot. Bring to a boil covered over medium-high heat. Skim off any foam that forms on the surface with a spoon.
Simmer Lentils: Reduce heat to low, cover, and simmer for 15 minutes. Add 1 tsp salt and 1/2 cup room temperature water, stir, cover again, and cook on low heat for another 15 minutes, stirring occasionally until lentils are fully cooked and soft.
Add Bulgur: Remove pot from heat and stir in the fine bulgur. Cover and set aside to allow bulgur to absorb moisture and soften.
Prepare Onion Mixture: In a medium frying pan, heat olive oil over medium-high heat. Add chopped onions and sauté, stirring occasionally, until they become light golden and soft, about 5 minutes.
Add Tomato and Pepper Paste: Reduce heat to medium, add tomato paste and red bell pepper paste to the onions. Stir continuously for 2 minutes to develop flavor and color. Remove from heat.
Combine Ingredients: In a large mixing bowl, combine the cooked lentils and bulgur with the sautéed onion mixture. Mix well by hand for about 2 minutes.
Add Spices and Herbs: Add cumin, paprika, seven spices, black pepper, dried marjoram, dried basil, and 1/2 tsp salt (adjust salt to taste). Mix thoroughly by hand for another 2 minutes, adding water gradually (about 1/2 cup) as needed to achieve a soft, moldable consistency.
Add Fresh Herbs: Fold in finely chopped green onions and fresh mint leaves. Mix gently to combine.
Serve: Transfer the kibbeh mixture to a large serving dish. Garnish with parsley, mint, and radish as desired. Optionally drizzle with olive oil and pomegranate molasses before serving.