<Page> EXHIBIT 4.6 DATE: Oct. 23, 2002 TO: MORTON'S RESTAURANT GROUP ATTN: THOMAS J. BALDWIN FAX: 516-627-1898 PHONE: 516-629-1515 FROM: Fleet National Bank ATTN: Derivatives Confirmation Unit FAX: (617) 434-4284 PHONE: (617) 434-2686 or (617) 434-7878 RE: INTEREST RATE SWAP Our Ref: 75912FB/36456 The purpose of this letter agreement is to set forth the terms and conditions of the Transaction entered into between Fleet National Bank and MORTON'S RESTAURANT GROUP on the Trade Date specified below (the "Transaction"). This letter constitutes a "Confirmation" as referred to in the ISDA Master Agreement specified below. The definitions and provisions contained in the 2000 ISDA Definitions (the "Definitions"), as published by the International Swaps and Derivatives Association, Inc. ("ISDA"), are incorporated into this Confirmation. In the event of any inconsistency between the Definitions and provisions in this Confirmation, this Confirmation will govern. 1. This Confirmation constitutes a "Confirmation" as referred to in, and supplements, forms a part of and is subject to, the ISDA Master Agreement dated as of 11/05/99, as amended and supplemented from time to time (the "Agreement"), between you and us. All provisions contained in the Agreement govern this Confirmation except as expressly modified below. 2. The terms of the particular Transaction to which this Confirmation relates are as follows: <Table> Trade Date : Oct. 22, 2002 Effective Date : Oct. 24, 2002 Termination Date : Oct. 24, 2005 subject to adjustment in accordance with the Modified Following Business Day Convention. Notional Amount : USD 20,000,000.00 Floating Amounts Floating Rate Payer : Fleet National Bank </Table> <Page> <Table> Floating Rate Payment Dates : Quarterly on the 24th, commencing Jan. 24, 2003 and ending on the Termination Date subject to adjustment in accordance with the Modified Following Business Day Convention. Floating Rate for initial Calculation Period : 1.840000 % Floating Rate Option : USD-LIBOR-BBA Designated Maturity : 3 months Spread : None Floating Rate Day Count Fraction : Actual /360 Floating Rate Reset Dates : The first Business Day of each Calculation Period Compounding : Inapplicable Business Days : New York and London Fixed Amounts Fixed Rate Payer : MORTON'S RESTAURANT GROUP Fixed Rate Payment Dates : Quarterly on the 24th, commencing Jan. 24, 2003 and ending on the Termination Date subject to adjustment in accordance with the Modified Following Business Day Convention. Fixed Rate : 3.445000 % Fixed Rate Day Count Fraction : ACTUAL /360 Business Days : New York and London Calculation Agent : Fleet National Bank 3. Settlement Instructions Payments to MORTON'S RESTAURANT GROUP in USD To : FLEET BANK A/C 550-84341 </Table> 2 <Page> <Table> Payments to Fleet National Bank in USD To : FLEET BANK A/C 550-84341 </Table> 3 <Page> 4. Contact Instructions Fleet National Bank : Tel: 617-434-7953 Resets /Payments Fax: 617-434-3588 Confirmations Tel: 617-434-2686 Fax: 617-434-4284 MORTON'S RESTAURANT GROUP : Tel: 516-627-1515 Fax: 516-627-1898 Very truly yours, Fleet National Bank By: By: -------------------------------- ------------------------------------- Name: Name: Title: Title: Agreed and accepted as of the date first above written: MORTON'S RESTAURANT GROUP By: /s/ Thomas J. Baldwin ------------------------------- Name: Thomas J. Baldwin Title: EVP & CFO PLEASE COUNTERSIGN AND FAX TO: (617) 434-4284 ATTN: Derivatives Confirmations REQUEST CORRECTIONS: (617) 434-2686 Please be advised telephone calls may be recorded to ensure transaction accuracy. 4