Crush the garlic in a garlic bowl, mix with mayonnaise, lemon juice, salt, and pepper.
Boil the eggs hard-boiled (cover with cold water, bring to a boil, and cook for 5 minutes). Peel, cut into wedges. Set aside a few wedges for decoration, finely chop the rest.
Combine all vegetables and eggs. Add dressing. Stir.
Fill with kefir.
Stir well and garnish with slices of hard-boiled egg or finely chopped parsley on top. Okroshka should be very thick.